Cambridge IAS-Level · Thinka 原創模擬試題

2025 Cambridge IAS-Level Economics (9708) 模擬試題連答案詳解

Thinka Nov 2025 (V4) Cambridge International A Level-Style Mock — Economics (9708)

90 分180 分鐘2025
分析模擬試題
An original Thinka practice paper modelled on the structure and difficulty of the Nov 2025 (V4) Cambridge International A Level Economics (9708) paper. Not affiliated with or reproduced from Cambridge.

卷一 (AS 選擇題)

There are thirty questions on this paper. Answer all questions. For each question there are four possible answers. Choose the one correct answer and record it in pencil.
30 題目 · 30 分
題目 1 · multiple_choice
1 分
The government imposes a specific indirect tax on a good. In which situation will the producer bear the entire burden of this tax?
  1. A.when the price elasticity of demand is perfectly inelastic (\(PED = 0\))
  2. B.when the price elasticity of demand is perfectly elastic (\(PED = \infty\))
  3. C.when the price elasticity of supply is perfectly elastic (\(PES = \infty\))
  4. D.when the price elasticity of supply is unit elastic (\(PES = 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解題

When demand is perfectly elastic (\(PED = \infty\)), consumers are highly sensitive to price changes and will purchase zero units if the price rises. Therefore, the producer cannot pass any of the tax burden to consumers, and the entire tax burden falls on the producer. (If \(PED = 0\) or \(PES = \infty\), consumers would bear the entire burden).

評分準則

1 mark for the correct answer (b). Reject other options as they represent cases where the consumer bears some or all of the tax burden.
題目 2 · multiple_choice
1 分
The table shows the demand and supply schedules for an agricultural product.

In a market, when the price is $6, quantity demanded is 800 and quantity supplied is 200. When the price is $8, quantity demanded is 700 and quantity supplied is 400. When the price is $10, quantity demanded is 600 and quantity supplied is 600. When the price is $12, quantity demanded is 500 and quantity supplied is 800. When the price is $14, quantity demanded is 400 and quantity supplied is 1000.

The government introduces a subsidy of $3 per unit to the producers of this product. What is the total cost of this subsidy to the government?
  1. A.$1800
  2. B.$2100
  3. C.$2400
  4. D.$3000
查看答案詳解

解題

1. Find the original equilibrium: quantity demanded equals quantity supplied at a price of $10 with 600 units.
2. When a subsidy of $3 per unit is given to producers, the supply curve shifts downward by $3.
3. Let's find the new consumer price where quantity demanded equals the new quantity supplied. At a consumer price of $8, consumers demand 700 units. Producers receive the consumer price of $8 plus the $3 subsidy, which equals $11. At a price of $11, the quantity supplied is exactly 700 units (midway between 600 units at $10 and 800 units at $12).
4. Thus, the new equilibrium quantity is 700 units. The total cost of the subsidy to the government is the new equilibrium quantity multiplied by the subsidy per unit: \(700 \times \$3 = \$2100\).

評分準則

1 mark for the correct answer (b). Reject other options: $1800 (using the original equilibrium quantity), $2400 (using the quantity supplied at consumer price of $12), and other incorrect combinations.
題目 3 · multiple_choice
1 分
In Country X, a worker can produce either 10 tonnes of grain or 20 units of toys in a week. In Country Y, a worker can produce either 5 tonnes of grain or 15 units of toys in a week. What would be a mutually beneficial terms of trade for both countries?
  1. A.1 tonne of grain for 1.5 toys
  2. B.1 tonne of grain for 2.5 toys
  3. C.1 tonne of grain for 3.5 toys
  4. D.1 tonne of grain for 4.0 toys
查看答案詳解

解題

To find a mutually beneficial rate of exchange, we calculate the opportunity cost of producing 1 tonne of grain in each country:
- In Country X, the opportunity cost of 1 tonne of grain is \(20 \div 10 = 2\) toys.
- In Country Y, the opportunity cost of 1 tonne of grain is \(15 \div 5 = 3\) toys.

Since Country X has a lower opportunity cost of producing grain (2 toys < 3 toys), it has a comparative advantage in grain and will export it. For trade to be mutually beneficial, the price of 1 tonne of grain must be greater than its opportunity cost in Country X (2 toys) but less than its opportunity cost in Country Y (3 toys). Thus, the exchange rate must lie between 2 toys and 3 toys. Only 2.5 toys (option b) satisfies this condition.

評分準則

1 mark for the correct option (b). Reject other options as they fall outside the range of mutually beneficial terms of trade (between 2 and 3 toys per tonne of grain).
題目 4 · multiple_choice
1 分
What is a necessary condition for mutually beneficial trade to take place between two countries according to the theory of comparative advantage?
  1. A.One country must have an absolute advantage in the production of all goods.
  2. B.The opportunity cost ratios of producing the goods must differ between the countries.
  3. C.The transport costs of trading the goods must exceed the differences in their production costs.
  4. D.Both countries must have identical wage rates and currency values.
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解題

The theory of comparative advantage states that mutually beneficial trade can occur as long as there is a difference in the relative opportunity costs of producing goods between the two countries. If the opportunity cost ratios are identical, neither country has a comparative advantage, and specialization cannot yield any gains from trade.

評分準則

1 mark for identifying the correct necessary condition (b). Reject options a, c, and d as they are incorrect or represent barriers to trade rather than necessary conditions.
題目 5 · multiple_choice
1 分
A government introduces an import tariff on a product. Which row correctly shows the immediate effects of this tariff?
  1. A.Consumer surplus decreases, domestic producer surplus increases, and government revenue increases.
  2. B.Consumer surplus decreases, domestic producer surplus decreases, and government revenue increases.
  3. C.Consumer surplus increases, domestic producer surplus increases, and government revenue decreases.
  4. D.Consumer surplus increases, domestic producer surplus decreases, and government revenue is unchanged.
查看答案詳解

解題

An import tariff increases the domestic price of the imported good. Consumers now pay a higher price and purchase a smaller quantity, which decreases consumer surplus. Domestic producers can sell their goods at the higher tariff-inclusive price and expand output, which increases domestic producer surplus. The government collects tariff revenue on the remaining imports, which increases government revenue. Therefore, option A is correct.

評分準則

1 mark for option A. Reject B, C, and D as they incorrectly identify the direction of change for at least one of the economic variables.
題目 6 · multiple_choice
1 分
Which pair of macroeconomic policy objectives is most likely to conflict in the short run when a government uses expansionary fiscal policy to stimulate the economy?
  1. A.low unemployment and high economic growth
  2. B.low inflation and low unemployment
  3. C.stable exchange rates and balance of payments current account surplus
  4. D.stable price level and long-run economic growth
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解題

Expansionary fiscal policy increases aggregate demand (AD). As AD rises, real output increases and unemployment falls (moving towards low unemployment). However, the increase in AD also puts upward pressure on price levels, leading to demand-pull inflation. Thus, the objective of low unemployment conflicts with the objective of low inflation (stable price level) in the short run.

評分準則

1 mark for the correct option (b). Reject a, c, and d because those pairs are either complementary (a) or do not have a standard short-run conflict under expansionary fiscal policy.
題目 7 · multiple_choice
1 分
A central bank wishes to implement a contractionary monetary policy to reduce inflationary pressures in the economy. Which combination of actions should the central bank take?
  1. A.Increase the central bank interest rate, sell government bonds, and increase the cash reserve ratio.
  2. B.Increase the central bank interest rate, buy government bonds, and decrease the cash reserve ratio.
  3. C.Decrease the central bank interest rate, sell government bonds, and decrease the cash reserve ratio.
  4. D.Decrease the central bank interest rate, buy government bonds, and increase the cash reserve ratio.
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解題

To curb inflation, a central bank implements contractionary monetary policy to reduce the money supply and raise the cost of credit: Increasing the interest rate discourages borrowing and encourages saving; Selling government bonds in open market operations drains cash reserves from commercial banks, reducing their lending capacity; Increasing the cash reserve ratio forces commercial banks to hold a higher percentage of deposits as reserves, which reduces the money multiplier and bank lending. Thus, option A is the correct combination.

評分準則

1 mark for option A. Reject B, C, and D as they include at least one expansionary policy action.
題目 8 · multiple_choice
1 分
An economy is initially in macroeconomic equilibrium. There is a sharp rise in the world price of imported energy resources, while at the same time domestic consumer confidence increases significantly. What will be the combined effect of these changes on the domestic price level and real GDP?
  1. A.Price level increases, and the effect on real GDP is uncertain.
  2. B.The effect on price level is uncertain, and real GDP increases.
  3. C.Price level increases, and real GDP decreases.
  4. D.Price level decreases, and the effect on real GDP is uncertain.
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解題

1. The sharp rise in the price of imported energy resources increases production costs for businesses. This causes the Short-Run Aggregate Supply (SRAS) curve to shift to the left, which tends to increase the price level and decrease real GDP.
2. The significant increase in domestic consumer confidence leads to higher household consumption spending. This causes the Aggregate Demand (AD) curve to shift to the right, which tends to increase both the price level and real GDP.
3. Combining these two shifts: both changes push the price level upwards, so the price level will definitely increase. However, the SRAS shift decreases real GDP while the AD shift increases real GDP, meaning the final effect on real GDP is uncertain (indeterminate) without knowing the relative size of each shift.

評分準則

1 mark for option A. Reject B, C, and D because the effect on price level is certain to be an increase, whereas the effect on real GDP is indeterminate.
題目 9 · 選擇題
1 分
The government sets a maximum price for rental housing below the market equilibrium price. What is the most likely consequence of this intervention?
  1. A.an increase in the quantity of rental housing supplied
  2. B.a surplus of rental housing in the market
  3. C.an increase in the consumer surplus of all potential tenants
  4. D.a decrease in the quantity of rental housing traded
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解題

A maximum price (price ceiling) set below the equilibrium price prevents the market from clearing. At this low price, the quantity demanded increases while the quantity supplied decreases, resulting in a shortage. Because trade can only occur if there is a willing seller, the actual quantity traded in the market falls to the quantity supplied at the maximum price, which is lower than the original equilibrium quantity. Therefore, the quantity traded decreases.

評分準則

1 mark for identifying the correct option D. Accept only D.
題目 10 · 選擇題
1 分
A government decides to impose a specific tax of $2 per unit on a good. The price elasticity of demand (\(PED\)) for this good is -0.5, and the price elasticity of supply (\(PES\)) is +1.5. How will the burden of this tax be shared between consumers and producers?
  1. A.Consumers will bear the entire burden of the tax.
  2. B.Producers will bear the entire burden of the tax.
  3. C.Consumers will bear a greater share of the tax burden than producers.
  4. D.Producers will bear a greater share of the tax burden than consumers.
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解題

The incidence of an indirect tax depends on the relative price elasticities of demand and supply. The party with the more inelastic curve bears the larger share of the tax. Since the price elasticity of demand is absolute value of -0.5 (inelastic, \(|PED| < 1\)) and the price elasticity of supply is +1.5 (elastic, \(PES > 1\)), demand is more inelastic than supply. Consumers are less responsive to price changes than producers, so they will bear the greater share of the tax burden.

評分準則

1 mark for identifying the correct option C. Accept only C.
題目 11 · 選擇題
1 分
The table shows the maximum potential output of wheat (in tonnes) or textiles (in bales) that Country X and Country Y can produce with one unit of resources.

| Country | Wheat (tonnes) | Textiles (bales) |
| :--- | :--- | :--- |
| Country X | 120 | 40 |
| Country Y | 80 | 80 |

Which statement is correct?
  1. A.Country X has a comparative advantage in textiles.
  2. B.Country Y has an absolute advantage in wheat.
  3. C.Country Y has a comparative advantage in textiles.
  4. D.Country Y has both absolute and comparative advantage in wheat.
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解題

To find comparative advantage, we calculate the opportunity cost of production for each good. In Country X, the opportunity cost of 1 tonne of wheat is \(40/120 = 0.33\) bales of textiles, and 1 bale of textiles is 3 tonnes of wheat. In Country Y, the opportunity cost of 1 tonne of wheat is \(80/80 = 1\) bale of textiles, and 1 bale of textiles is 1 tonne of wheat. Country Y has a lower opportunity cost in textiles (1 tonne of wheat vs 3 tonnes of wheat for Country X), giving it a comparative advantage in textiles.

評分準則

1 mark for identifying the correct option C. Accept only C.
題目 12 · 選擇題
1 分
Under what condition will mutually beneficial trade occur between two countries?
  1. A.The terms of trade lie outside the limits set by the opportunity cost ratios of the two countries.
  2. B.The terms of trade lie between the opportunity cost ratios of the two countries.
  3. C.Both countries have identical opportunity cost ratios for both goods.
  4. D.One country has an absolute advantage in the production of both goods.
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解題

For trade to be mutually beneficial, the terms of trade (the price ratio of the goods traded) must lie between the opportunity cost ratios of the two countries. This allows both nations to consume outside their individual production possibility curves. If the terms of trade were outside this range, one of the countries would find it cheaper to produce the good domestically rather than importing it, making trade non-viable.

評分準則

1 mark for identifying the correct option B. Accept only B.
題目 13 · 選擇題
1 分
Which of the following describes the changes in consumer surplus, domestic producer surplus, and government tariff revenue resulting from the imposition of an import tariff?
  1. A.Consumer surplus decreases, domestic producer surplus increases, and government revenue increases.
  2. B.Consumer surplus increases, domestic producer surplus decreases, and government revenue increases.
  3. C.Consumer surplus decreases, domestic producer surplus increases, and government revenue decreases.
  4. D.Consumer surplus increases, domestic producer surplus increases, and government revenue decreases.
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解題

An import tariff increases the price of the imported good in the domestic market. This higher price reduces the consumer surplus as consumers pay more and buy less. However, domestic producers benefit from the higher price and expand their sales, which increases domestic producer surplus. Furthermore, the government receives tax revenue from the imports that continue to enter the country, so government tariff revenue increases.

評分準則

1 mark for identifying the correct option A. Accept only A.
題目 14 · 選擇題
1 分
Which combination of macroeconomic problems is most likely to occur as a direct result of an expansionary fiscal policy?
  1. A.higher inflation and a deterioration in the current account of the balance of payments
  2. B.higher unemployment and a surplus on the current account of the balance of payments
  3. C.lower economic growth and higher inflation
  4. D.lower inflation and a deterioration in the current account of the balance of payments
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解題

Expansionary fiscal policy involves increasing government spending or cutting taxes, which shifts the Aggregate Demand (AD) curve to the right. This causes demand-pull inflation, which directly conflicts with the objective of price stability. Additionally, the resulting rise in national income leads to increased consumer expenditure on imports, causing a deterioration in the current account of the balance of payments.

評分準則

1 mark for identifying the correct option A. Accept only A.
題目 15 · 選擇題
1 分
Which sequence correctly describes the transmission mechanism of an expansionary monetary policy?
  1. A.decrease in interest rates \(\rightarrow\) increase in the cost of borrowing \(\rightarrow\) decrease in consumption \(\rightarrow\) decrease in Aggregate Demand
  2. B.decrease in interest rates \(\rightarrow\) depreciation of the exchange rate \(\rightarrow\) increase in net exports \(\rightarrow\) increase in Aggregate Demand
  3. C.increase in commercial bank reserve requirements \(\rightarrow\) increase in credit creation \(\rightarrow\) increase in investment \(\rightarrow\) increase in Aggregate Demand
  4. D.increase in interest rates \(\rightarrow\) appreciation of the exchange rate \(\rightarrow\) increase in net exports \(\rightarrow\) decrease in Aggregate Demand
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解題

An expansionary monetary policy involves lowering interest rates. This makes saving less attractive and borrowing cheaper, but it also leads to financial capital outflows (hot money) seeking higher returns elsewhere. This capital outflow depreciates the domestic currency. A weaker currency makes exports cheaper and imports more expensive, which boosts net exports and consequently increases Aggregate Demand.

評分準則

1 mark for identifying the correct option B. Accept only B.
題目 16 · 選擇題
1 分
An economy experiences a significant increase in the productivity of its workforce alongside a simultaneous decrease in consumer confidence. What are the expected short-run effects of these changes on the price level and real output?
  1. A.Both the price level and real output will rise.
  2. B.The price level will fall, but the effect on real output is uncertain.
  3. C.The price level will rise, but the effect on real output is uncertain.
  4. D.Real output will rise, but the effect on the price level is uncertain.
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解題

An increase in productivity decreases unit costs, shifting the Short-Run Aggregate Supply (SRAS) curve to the right. This shift increases real output and decreases the price level. Concurrently, a decrease in consumer confidence reduces consumption, shifting the Aggregate Demand (AD) curve to the left. This shift decreases both real output and the price level. Combining these two shifts: both actions reduce the price level (so the price level definitely falls), but their opposing effects on output mean the final impact on real output is uncertain.

評分準則

1 mark for identifying the correct option B. Accept only B.
題目 17 · 選擇題
1 分
A government introduces a maximum price on rented housing that is set below the free market equilibrium price. What is an immediate consequence of this policy?
  1. A.A surplus of rental housing in the market.
  2. B.An increase in producer surplus for landlords.
  3. C.A shortage of rental housing and the potential development of a shadow market.
  4. D.An expansion in the quantity of rental housing supplied.
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解題

When a maximum price (price ceiling) is set below the free-market equilibrium price, quantity demanded exceeds quantity supplied, leading to a persistent shortage of rental housing. Because of this excess demand, shadow (informal or black) markets often emerge where consumers pay more than the legal maximum to secure housing.

評分準則

Award 1 mark for identifying that setting a price ceiling below equilibrium results in a shortage and the emergence of shadow markets. All other choices represent incorrect market adjustments.
題目 18 · 選擇題
1 分
The government imposes a specific indirect tax on a good. Under which circumstances will consumers bear the entire burden (incidence) of this tax?
  1. A.The price elasticity of demand for the good is perfectly inelastic.
  2. B.The price elasticity of supply for the good is perfectly inelastic.
  3. C.The price elasticity of demand for the good is perfectly elastic.
  4. D.The price elasticity of demand is equal to the price elasticity of supply.
查看答案詳解

解題

When the price elasticity of demand (PED) is perfectly inelastic (equal to 0), consumers are completely unresponsive to changes in price. Consequently, the entire burden of any indirect tax is passed on to consumers in the form of a higher price, leaving the producer's net price unchanged.

評分準則

Award 1 mark for identifying that perfectly inelastic demand results in consumers bearing the full incidence of the tax.
題目 19 · 選擇題
1 分
Two countries, X and Y, produce wheat and clothing with constant opportunity costs. Country X can produce 10 units of wheat or 5 units of clothing per hour. Country Y can produce 8 units of wheat or 8 units of clothing per hour. What is the mutually beneficial range of the terms of trade for 1 unit of clothing in terms of wheat?
  1. A.between 0.5 and 1.0 units of wheat
  2. B.between 1.0 and 2.0 units of wheat
  3. C.between 0.8 and 1.25 units of wheat
  4. D.between 1.25 and 2.0 units of wheat
查看答案詳解

解題

First, calculate the opportunity cost of producing 1 unit of clothing for each country. For Country X, the opportunity cost of 1 unit of clothing is \(10 / 5 = 2\) units of wheat. For Country Y, the opportunity cost of 1 unit of clothing is \(8 / 8 = 1\) unit of wheat. For trade to be mutually beneficial, the terms of trade for 1 unit of clothing must lie strictly between the opportunity costs of the two countries, which is between 1.0 and 2.0 units of wheat.

評分準則

Award 1 mark for calculating the correct opportunity costs and identifying the mutually beneficial range of trade (between 1.0 and 2.0 units of wheat).
題目 20 · 選擇題
1 分
A small open economy decides to impose a tariff on imports of smart devices. What are the expected impacts on domestic consumer surplus, domestic producer surplus, and government tariff revenue?
  1. A.Consumer surplus decreases, producer surplus increases, and government revenue increases.
  2. B.Consumer surplus increases, producer surplus decreases, and government revenue increases.
  3. C.Consumer surplus decreases, producer surplus increases, and government revenue decreases.
  4. D.Consumer surplus increases, producer surplus increases, and government revenue is unchanged.
查看答案詳解

解題

A tariff raises the domestic price of imports. This reduces the overall consumer surplus because consumers pay higher prices and buy fewer devices. Domestic producers benefit from the higher price and increase their production, which increases domestic producer surplus. The government also gains by collecting tariff revenue on the remaining volume of imports.

評分準則

Award 1 mark for identifying the correct directions of change: consumer surplus decreases, producer surplus increases, and government revenue increases.
題目 21 · 選擇題
1 分
Why might the Consumer Prices Index (CPI) differ from the GDP deflator as a measure of inflation within an economy?
  1. A.The CPI includes the prices of capital goods, whereas the GDP deflator does not.
  2. B.The CPI only includes the prices of domestically produced goods, while the GDP deflator includes imported consumer goods.
  3. C.The CPI uses a fixed basket of consumer goods and services, whereas the GDP deflator reflects the prices of all domestically produced goods and services.
  4. D.The GDP deflator is always higher than CPI because it excludes housing costs.
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解題

The CPI measures price changes of a representative basket of goods and services typically purchased by households (including imported consumer goods). In contrast, the GDP deflator measures the prices of all goods and services produced domestically (excluding imported goods) and its weights adjust automatically as the structure of the economy's output changes.

評分準則

Award 1 mark for identifying that CPI is based on a fixed household basket (including imports) whereas the GDP deflator reflects all domestically produced output.
題目 22 · 選擇題
1 分
The central bank of an economy decides to increase its policy interest rate. What is the most likely transmission mechanism through which this action dampens aggregate demand (AD)?
  1. A.Lower cost of borrowing encourages household saving, leading to an increase in AD.
  2. B.Higher cost of borrowing reduces consumer spending on credit and discourages investment, leading to a decrease in AD.
  3. C.Depreciation of the national currency makes exports cheaper and imports more expensive, reducing AD.
  4. D.Increased commercial bank credit expansion expands the money supply, leading to lower AD.
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解題

Raising the central bank's policy rate increases commercial bank interest rates. This makes borrowing more expensive for households and firms, thereby reducing credit-funded consumer spending (especially on consumer durables) and discouraging business investment. This decrease in consumption (C) and investment (I) shifts the AD curve to the left.

評分準則

Award 1 mark for identifying that higher rates increase the cost of borrowing, which reduces consumer spending and investment, leading to a decrease in aggregate demand.
題目 23 · 選擇題
1 分
An economy experiences a sharp depreciation of its currency alongside a significant increase in consumer confidence. What is the combined net effect of these events on the short-run equilibrium price level and real output?
  1. A.Price level definitely rises; real output definitely rises.
  2. B.Price level definitely rises; real output is uncertain.
  3. C.Price level is uncertain; real output definitely falls.
  4. D.Price level definitely falls; real output is uncertain.
查看答案詳解

解題

A currency depreciation increases net exports (shifting AD to the right) and increases the price of imported raw materials (shifting SRAS to the left). A rise in consumer confidence increases consumer spending, shifting AD further to the right. Both the rightward shift in AD and the leftward shift in SRAS push the price level up (it definitely rises). However, the rightward shift in AD increases real output, while the leftward shift in SRAS reduces it, making the net effect on real output uncertain without knowing the relative magnitudes of the shifts.

評分準則

Award 1 mark for correctly analyzing the opposing output effects and reinforcing price level effects of the AD and SRAS shifts, concluding that the price level rises and real output is uncertain.
題目 24 · 選擇題
1 分
The demand and supply functions for a product are given by \(Q_d = 200 - 2P\) and \(Q_s = -40 + 4P\), where \(P\) is the price in dollars and \(Q\) is quantity. If the government introduces a subsidy of $6 per unit paid to producers, what will be the new equilibrium price paid by consumers?
  1. A.$34
  2. B.$36
  3. C.$38
  4. D.$44
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解題

With a $6 subsidy, the price received by producers (\(P_s\)) is related to the price paid by consumers (\(P_d\)) by \(P_s = P_d + 6\). Substitute this into the original supply function: \(Q_s = -40 + 4(P_d + 6) = -40 + 4P_d + 24 = -16 + 4P_d\). Set the new supply equal to demand: \(200 - 2P_d = -16 + 4P_d\), which simplifies to \(216 = 6P_d\), giving \(P_d = 36\). The new price paid by consumers is $36.

評分準則

Award 1 mark for setting up and solving the algebraic equation with the subsidy included, yielding the correct consumer price of $36.
題目 25 · 選擇題
1 分
The demand and supply equations for an agricultural good are: \(Q_d = 200 - 2P\) and \(Q_s = 50 + 3P\), where \(P\) is the price in dollars and \(Q\) is the quantity in tonnes. The government introduces a minimum price of $40 per tonne and decides to purchase any surplus to support farmers' incomes. What is the total expenditure by the government on purchasing this surplus?
  1. A.$800
  2. B.$1200
  3. C.$2000
  4. D.$6800urgs ... Wait, this is just $6800. Let's make it $6800 directly without typo: $6800 ... Wait, let's write $6800 only: $6800 ... No, let's keep it clean: $6800!
查看答案詳解

解題

First, calculate the quantity demanded and quantity supplied at the minimum price of $40. Quantity demanded is \(Q_d = 200 - 2(40) = 120\) tonnes. Quantity supplied is \(Q_s = 50 + 3(40) = 170\) tonnes. The market surplus is the difference between quantity supplied and quantity demanded: \(170 - 120 = 50\) tonnes. The government purchases this surplus of 50 tonnes at the minimum price of $40 per tonne. Total expenditure equals \(50 \times \$40 = \$2000\).

評分準則

1 mark for the correct answer C. Correct calculation steps: Surplus = 50 tonnes; Expenditure = 50 * $40 = $2000. Reject A (assumes surplus of 20 tonnes), B (assumes surplus of 30 tonnes), and D (assumes purchase of total supply).
題目 26 · 選擇題
1 分
In Country X, one worker-day can produce either 10 tonnes of wheat or 5 units of clothing. In Country Y, one worker-day can produce either 8 tonnes of wheat or 2 units of clothing. Which exchange rate (terms of trade) would be mutually beneficial for both countries to engage in trade?
  1. A.1 unit of clothing for 1.5 tonnes of wheat
  2. B.1 unit of clothing for 3 tonnes of wheat
  3. C.1 tonne of wheat for 1.5 units of clothing
  4. D.1 tonne of wheat for 3 units of clothing dialogue ... Let's make it 1 tonne of wheat for 3 units of clothing strictly: 1 tonne of wheat for 3 units of clothing ... wait, let's keep it simple: 1 tonne of wheat for 3 units of clothing!
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解題

First, calculate the opportunity cost of producing 1 unit of clothing in each country. For Country X, the opportunity cost of 1 unit of clothing is \(10 / 5 = 2\) tonnes of wheat. For Country Y, the opportunity cost of 1 unit of clothing is \(8 / 2 = 4\) tonnes of wheat. For trade to be mutually beneficial, the terms of trade for 1 unit of clothing must lie between these two opportunity costs, i.e., between 2 and 4 tonnes of wheat. An exchange rate of 1 unit of clothing for 3 tonnes of wheat satisfies this condition.

評分準則

1 mark for the correct answer B. Correct determination of opportunity costs for clothing (Country X = 2 wheat, Country Y = 4 wheat) and identifying that the mutually beneficial exchange rate must fall between these two limits.
題目 27 · 選擇題
1 分
A country initially imports a good under an import quota. The government decides to replace the quota with a tariff that is set so that the volume of imports remains exactly the same. What is the most likely outcome of this policy change?
  1. A.Domestic consumer surplus remains unchanged, and government revenue increases.
  2. B.Domestic producer surplus increases, and government revenue remains unchanged.
  3. C.The deadweight loss of protectionism increases.
  4. D.The domestic price of the import increases, and consumer surplus decreases.
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解題

Because the tariff is set to maintain the exact same volume of imports as the quota, the total domestic supply (domestic production plus imports) and the domestic price of the good remain unchanged. Therefore, domestic consumer surplus and domestic producer surplus remain unchanged. Under the quota, the quota rent was captured by foreign exporters or domestic importers. Under the tariff, this rent is collected by the government as tariff revenue. Thus, government revenue increases while consumer surplus remains unchanged.

評分準則

1 mark for the correct answer A. Recognition that domestic price and quantity remain identical (so consumer and producer surpluses are unchanged) while the government captures the quota rent as tariff revenue.
題目 28 · 選擇題
1 分
An economy is experiencing high economic growth driven entirely by an expansion in domestic consumer spending. Which combination of macroeconomic problems is most likely to arise in the short run as a result of this growth?
  1. A.Rate of inflation falls; Current account balance moves towards surplus
  2. B.Rate of inflation falls; Current account balance moves towards deficit
  3. C.Rate of inflation rises; Current account balance moves towards surplus
  4. D.Rate of inflation rises; Current account balance moves towards deficit
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解題

A rapid expansion in consumer spending shifts the Aggregate Demand (AD) curve to the right. In the short run, this increases demand-pull inflation (rate of inflation rises). Additionally, higher consumer spending and rising national income lead to an increase in the purchase of imported goods, causing the current account of the balance of payments to move towards a deficit.

評分準則

1 mark for the correct answer D. Correct analysis of the impact of AD-led growth on inflation (rises) and the current account (moves towards deficit due to increased import demand).
題目 29 · 選擇題
1 分
The central bank of an economy decides to lower its policy interest rate. What is a correct sequence of events in the transmission mechanism of this expansionary monetary policy?
  1. A.lower interest rate -> capital outflow -> appreciation of exchange rate -> exports become cheaper -> Aggregate Demand increases
  2. B.lower interest rate -> higher cost of borrowing -> reduced saving -> investment increases -> Aggregate Demand increases
  3. C.lower interest rate -> capital outflow -> depreciation of exchange rate -> exports become cheaper -> Aggregate Demand increases
  4. D.lower interest rate -> lower demand for credit -> commercial banks lower lending standards -> consumption increases -> Aggregate Demand increases
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解題

When the central bank lowers the policy interest rate, domestic interest rates fall. This leads to capital outflows as investors seek higher returns abroad. The selling of the domestic currency causes its exchange rate to depreciate. A depreciated exchange rate makes domestic exports cheaper in foreign currencies, increasing the volume of exports and shifting the Aggregate Demand curve to the right.

評分準則

1 mark for the correct answer C. Step-by-step verification of the exchange rate transmission channel of a rate cut: rate cut -> capital outflow -> depreciation -> cheaper exports -> higher AD.
題目 30 · 選擇題
1 分
An economy is initially in macroeconomic equilibrium. There is a simultaneous decrease in the rate of corporate income tax and a significant rise in the global price of imported raw materials. How will these changes affect the Aggregate Demand (AD) curve and the Short-Run Aggregate Supply (SRAS) curve of this economy?
  1. A.AD curve shifts to the left; SRAS curve shifts to the left
  2. B.AD curve shifts to the right; SRAS curve shifts to the left
  3. C.AD curve shifts to the right; SRAS curve shifts to the right
  4. D.AD curve shifts to the left; SRAS curve shifts to the right
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解題

A decrease in corporate income tax increases the after-tax profits of firms, which stimulates investment spending. Since investment is a component of Aggregate Demand, the AD curve shifts to the right. A significant rise in the price of imported raw materials increases the costs of production for domestic firms, which shifts the Short-Run Aggregate Supply (SRAS) curve to the left.

評分準則

1 mark for the correct answer B. Correctly identifying that lower corporate tax increases investment (AD shifts right) and higher raw material prices raise production costs (SRAS shifts left).

卷二 甲部 (Data Response)

Answer all parts of Question 1.
5 題目 · 20 分
題目 1 · Data Response
4 分
With the aid of a demand and supply diagram, explain how the introduction of a maximum price set below the equilibrium price affects consumer surplus in a market.
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解題

The diagram should show downward-sloping demand (D) and upward-sloping supply (S) intersecting at equilibrium price (Pe) and quantity (Qe). A horizontal maximum price line (Pmax) is drawn below Pe, showing a reduced quantity supplied (Qs) and a shortage. Consumer surplus originally was the area below the demand curve and above Pe. After the price ceiling, consumer surplus is the area below the demand curve and above Pmax, but only up to the new quantity traded (Qs). Consumers who can still purchase the good benefit from a lower price (gaining surplus), while consumers who can no longer buy the good lose surplus. Thus, the net effect on consumer surplus is mathematically ambiguous.

評分準則

Up to 2 marks for a correct diagram showing: [1 mark] demand, supply, original equilibrium, and a maximum price line below the equilibrium. [1 mark] the new quantity traded (Qs) and the resulting shortage or change in consumer surplus. Up to 2 marks for explanation: [1 mark] explaining that consumers who continue to buy the good gain surplus due to the lower price. [1 mark] explaining that total quantity traded falls, causing some consumers to lose access to the good, which creates a deadweight loss and reduces consumer surplus for those excluded.
題目 2 · Data Response
4 分
Explain two reasons why a government might choose to implement an import quota rather than an import tariff to restrict the imports of a foreign product.
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解題

Governments choose between tariffs and quotas based on precision and political impact. First, an import quota guarantees a strict limit on the physical volume of imports. With a tariff, if foreign producers lower their prices or domestic demand is highly price inelastic, the volume of imports may not fall significantly. Second, a quota does not directly levy an explicit tax at the border, which can sometimes avoid immediate retaliatory trade disputes or domestic consumer backlash compared to a visible tariff.

評分準則

[2 marks] for the first reason: 1 mark for identifying the reason (e.g., certainty of quantity limit) and 1 mark for explanation relating to why a tariff might fail (e.g., due to price inelasticity of demand). [2 marks] for the second reason: 1 mark for identifying the reason (e.g., avoiding retaliatory measures or political sensitivity of tariffs) and 1 mark for explanation.
題目 3 · Data Response
4 分
Explain how an increase in a central bank's policy interest rate is intended to reduce inflation through its impact on the components of aggregate demand.
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解題

An increase in the central bank's policy interest rate increases commercial bank lending and saving rates. This has two main effects on aggregate demand (AD = C + I + G + (X - M)): 1. Consumer spending (C) falls because credit-financed purchases become more expensive, and savers increase savings. 2. Investment (I) by firms falls as the cost of borrowing for capital projects increases, reducing the number of profitable investment opportunities. Consequently, aggregate demand shifts to the left, reducing real GDP and relieving upward pressure on the general price level, thereby controlling demand-pull inflation.

評分準則

[1 mark] for explaining the direct effect of higher interest rates on the cost of borrowing and incentive to save. [1 mark] for linking this to a reduction in consumer expenditure (C). [1 mark] for linking this to a reduction in investment (I). [1 mark] for explaining that the resulting leftward shift in aggregate demand (AD) reduces demand-pull inflation.
題目 4 · Data Response
4 分
The table shows the maximum output of Wheat or Cloth that can be produced per worker-day in Country X and Country Y: Country X can produce 120 Wheat or 40 Cloth. Country Y can produce 90 Wheat or 15 Cloth. Calculate the opportunity cost of producing 1 unit of Cloth for both countries, and state which country has the comparative advantage in Cloth.
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解題

To calculate the opportunity cost of 1 unit of Cloth: For Country X, producing 40 units of Cloth means sacrificing 120 units of Wheat. Therefore, the opportunity cost of 1 unit of Cloth is \(120 / 40 = 3\) units of Wheat. For Country Y, producing 15 units of Cloth means sacrificing 90 units of Wheat. Therefore, the opportunity cost of 1 unit of Cloth is \(90 / 15 = 6\) units of Wheat. Comparing the two, Country X has a lower opportunity cost of producing Cloth (3 Wheat) than Country Y (6 Wheat). According to the theory of comparative advantage, a country should specialize in the good where it has a lower opportunity cost. Hence, Country X has the comparative advantage in Cloth.

評分準則

[1 mark] for calculating the correct opportunity cost for Country X (3 units of Wheat). [1 mark] for calculating the correct opportunity cost for Country Y (6 units of Wheat). [1 mark] for correctly identifying Country X as having the comparative advantage in Cloth. [1 mark] for explaining that Country X has the comparative advantage because its opportunity cost of producing Cloth is lower than Country Y's.
題目 5 · Data Response
4 分
Using an aggregate demand and aggregate supply (AD-AS) diagram, explain the likely macroeconomic effects of a significant decrease in national labor productivity.
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解題

A decrease in labor productivity means that workers produce less output per hour. This increases the unit cost of production for firms. Higher production costs cause firms to reduce output at any given price level, shifting the short-run aggregate supply (SRAS) curve to the left (from SRAS1 to SRAS2). The AD-AS diagram should show this leftward shift intersecting the downward-sloping AD curve at a higher equilibrium price level (P1 to P2) and a lower level of real national output (Y1 to Y2). This outcome is characterized by cost-push inflation and higher unemployment.

評分準則

Up to 2 marks for the diagram: [1 mark] for correctly labeled axes (Price Level and Real GDP/Output), AD curve, and initial SRAS and equilibrium. [1 mark] for showing a leftward shift of the SRAS curve and the resulting higher price level and lower output equilibrium. Up to 2 marks for explanation: [1 mark] for explaining that lower productivity increases unit costs of production. [1 mark] for explaining how this leads to cost-push inflation and a contraction in national output.

卷二 乙部 (Micro Essay)

Answer one question (either Question 2 or Question 3).
2 題目 · 20 分
題目 1 · essay
8 分
An economy's government decides to impose a specific indirect tax on sugary drinks to reduce their consumption.

Explain, with the aid of a demand and supply diagram, how the imposition of this tax affects consumer surplus and producer surplus. [8]
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解題

### Definitions:
- **Indirect Tax**: A tax levied on expenditure on goods and services, which increases the costs of production for firms. A specific tax is a fixed, flat-rate tax per unit of the good sold.
- **Consumer Surplus (CS)**: The difference between what consumers are willing and able to pay for a good or service (indicated by the demand curve) and the actual market price they pay.
- **Producer Surplus (PS)**: The difference between the price producers are willing and able to accept to supply a good or service (indicated by the supply curve) and the actual price they receive.

### Diagrammatic Analysis:
In a standard demand and supply diagram:
- The vertical axis is labeled Price (\(P\)) and the horizontal axis is labeled Quantity (\(Q\)).
- The market demand curve is downward-sloping (\(D\)), and the initial market supply curve is upward-sloping (\(S_1\)).
- The initial equilibrium is established at the intersection of \(D\) and \(S_1\), resulting in market price \(P_1\) and quantity \(Q_1\).
- **Initial Consumer Surplus** is represented by the triangular area below the demand curve and above the price level \(P_1\).
- **Initial Producer Surplus** is represented by the triangular area above the supply curve \(S_1\) and below the price level \(P_1\).

### Impact of the Specific Indirect Tax:
1. **Supply Curve Shift**: The specific tax increases the marginal cost of supplying sugary drinks. This causes the supply curve to shift vertically upwards by the exact amount of the tax, from \(S_1\) to \(S_2\). The vertical distance between \(S_1\) and \(S_2\) represents the tax per unit.
2. **New Equilibrium**: The new equilibrium is formed at the intersection of \(D\) and \(S_2\), leading to a higher retail price \(P_2\) and a lower market quantity transacted \(Q_2\).
3. **Price Received by Producers**: Consumers pay \(P_2\), but producers must pay the tax to the government. Thus, the net price received by producers falls to \(P_{\text{net}} = P_2 - \text{tax}\), which is located vertically below \(P_2\) on the original supply curve \(S_1\) at quantity \(Q_2\).

### Effects on Surplus:
- **Consumer Surplus**: Shrinks to the smaller area below the demand curve and above the higher price \(P_2\). The loss in consumer surplus is represented by the trapezoidal area \(P_2 P_1 \times\) the corresponding quantity change.
- **Producer Surplus**: Shrinks to the area above the original supply curve \(S_1\) and below the lower net price \(P_{\text{net}}\). The loss in producer surplus is represented by the area between \(P_1\) and \(P_{\text{net}}\) over the remaining quantity sold \(Q_2\), plus the small triangle representing lost transactions.

Both consumers and producers experience a reduction in surplus. Part of this lost surplus is transferred to the government as tax revenue (the rectangle defined by \((P_2 - P_{\text{net}}) \times Q_2\)), while the remaining lost surplus represents a deadweight welfare loss to society due to under-allocation of resources relative to the free-market outcome.

評分準則

**AO1: Knowledge and Understanding (Max 3 marks)**
- **1 mark**: For a clear definition of an indirect tax (or a specific tax).
- **1 mark**: For a clear definition of consumer surplus.
- **1 mark**: For a clear definition of producer surplus.

**AO2: Application (Max 5 marks)**
- **Up to 3 marks for a correct, fully-labelled demand and supply diagram**:
- **1 mark**: Correctly labelled axes (Price and Quantity), Demand (\(D\)), and initial Supply (\(S_1\)) curves.
- **1 mark**: Upward parallel shift of the supply curve to \(S_2\), indicating the vertical distance as the tax.
- **1 mark**: Correctly showing the initial and new equilibrium prices (\(P_1\), \(P_2\)) and quantities (\(Q_1\), \(Q_2\)), and the net price received by producers (\(P_{\text{net}}\)).
- **Up to 2 marks for explaining the changes in surplus**:
- **1 mark**: Clear explanation (supported by reference to the diagram) of why consumer surplus decreases (due to the higher consumer price \(P_2\) and lower quantity \(Q_2\)).
- **1 mark**: Clear explanation (supported by reference to the diagram) of why producer surplus decreases (due to the lower net price \(P_{\text{net}}\) received by producers and the reduced quantity sold \(Q_2\)).
題目 2 · essay
12 分
Assess whether a maximum price or a subsidy is the more effective policy for a government to make essential foodstuffs more affordable for low-income households.
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解題

Introduction


Governments often intervene in agricultural markets to ensure that low-income households can afford basic necessities like bread, milk, or rice. Two common methods used are maximum prices (price ceilings) and subsidies. Each policy has distinct impacts on consumers, producers, and the government budget.



1. Maximum Prices (Price Ceilings)


A maximum price is a legally established limit above which sellers cannot charge. To be effective in making food affordable, it must be set below the market equilibrium price (\(P_e\)).



  • Mechanism: By forcing the price down to \(P_{max}\), the quantity demanded increases (due to the income and substitution effects), while the quantity supplied by producers falls (as profitability drops). This mismatch creates a permanent shortage or excess demand (\(Q_d - Q_s\)).

  • Benefits: Those low-income consumers who are successful in purchasing the foodstuff benefit from a lower price, raising their real purchasing power. It requires no direct government financial expenditure to lower the price.

  • Drawbacks: Because of the shortage, some form of non-price rationing is required (e.g., queuing, first-come-first-served, or government-issued ration coupons). This can lead to the emergence of black or parallel markets where the food is resold illegally at a higher price, undermining the policy's purpose.



2. Subsidies


A subsidy is a financial grant given by the government to producers to lower their costs of production.



  • Mechanism: The subsidy shifts the supply curve vertically downwards (to the right) by the amount of the subsidy. This leads to a lower market equilibrium price and an increase in the equilibrium quantity traded.

  • Benefits: Unlike a maximum price, a subsidy avoids shortages. The quantity of food available actually increases, ensuring that more low-income consumers can access it without standing in queues or facing black markets.

  • Drawbacks: Subsidies are extremely costly to the public purse. The total cost to the government is the subsidy per unit multiplied by the new quantity traded. This creates a significant opportunity cost, as funds must be diverted from other public services like healthcare or education, or raised through higher taxation. Furthermore, if demand is highly price inelastic, a large portion of the subsidy may benefit producers rather than being passed on to consumers.



Evaluation / Comparison


Whether a maximum price or a subsidy is more effective depends on several criteria:



  • Government Budget: Developing countries with limited tax revenue may be forced to use maximum prices despite the risk of shortages, as they cannot afford the massive fiscal outlay of subsidies.

  • Market Availability: If the primary goal is to ensure physical food security, a subsidy is superior because it encourages production, whereas a maximum price discourages it.

  • Targeting: Both policies can suffer from a lack of targeting (e.g., high-income households also benefit from the lower prices). Direct income transfers (like food stamps) might be a more efficient alternative to both options.


In conclusion, while a maximum price is direct and costless to the government, its secondary consequences—shortages, queuing, and black markets—often hurt the very low-income households it aims to protect. A subsidy is generally the more effective and stable economic policy to ensure both affordability and availability, provided the government has the financial capacity to sustain it.

評分準則

Analysis (up to 8 marks):

  • Up to 4 marks for a clear analysis of a maximum price: definition/explanation of setting it below equilibrium, explanation of how it creates a shortage (excess demand), and identification of consequences such as queuing, rationing, or black markets. (Credit can be given for describing a well-labeled demand and supply diagram showing a price ceiling and resulting shortage).

  • Up to 4 marks for a clear analysis of a subsidy: definition/explanation of how a subsidy shifts the supply curve to the right, lowers the price, and increases quantity. Discussion of the financial cost to the government and the concept of opportunity cost.



Evaluation (up to 4 marks):

  • 1-2 marks for basic evaluative comments comparing the two methods (e.g., noting that one is expensive and the other causes shortages).

  • 3-4 marks for a reasoned judgment on which is "more effective" depending on specific factors (such as the government's fiscal position, the price elasticity of demand/supply, or the administrative feasibility of rationing vs. tax collection), leading to a clear conclusion.

卷二 部分 C (Macro Essay)

Answer one question (either Question 4 or Question 5).
2 題目 · 20 分
題目 1 · Essay
8 分
Explain how a central bank can use interest rates and the money supply as monetary policy tools to reduce the level of aggregate demand in an economy.
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解題

Monetary policy involves the use of interest rates, the money supply, and exchange rates to influence the level of economic activity. To reduce aggregate demand (AD), where AD = C + I + G + (X - M), a central bank will implement contractionary (tight) monetary policy. 1. Interest Rates: The central bank raises its base/policy interest rate. This increase is passed on by commercial banks to consumers and firms. Consequently, the cost of borrowing increases, which discourages consumers from buying big-ticket items on credit (reducing Consumption, C) and increases the cost of servicing existing variable-rate debts (such as mortgages), reducing households' disposable income. Additionally, the incentive to save rises, causing consumers to defer spending. For firms, the cost of borrowing for capital projects increases, making fewer investment projects profitable and thus reducing Investment (I). 2. Money Supply: The central bank can directly reduce the money supply or the rate of its growth through open market operations (e.g., selling government bonds to commercial banks). This action drains liquidity/cash reserves from the banking system, reducing the monetary base. With fewer reserves, commercial banks must restrict their lending, leading to a contraction in credit availability. This makes it more difficult for households and firms to secure loans, further reducing C and I. Together, the reduction in consumption and investment shifts the AD curve to the left, reducing the overall level of aggregate demand in the economy.

評分準則

For details of the marking allocation: AO1 Knowledge and Understanding (max 4 marks): - Up to 2 marks for defining monetary policy and identifying the relevant tools (interest rates and money supply). - Up to 2 marks for showing understanding of aggregate demand and its components (C and I). AO2 Analysis (max 4 marks): - Up to 2 marks for explaining the transmission mechanism of interest rates (how higher rates increase the cost of borrowing/incentive to save, leading to lower C and I). - Up to 2 marks for explaining the transmission mechanism of the money supply (how reducing bank reserves/liquidity restricts credit creation and lending, leading to lower C and I).
題目 2 · essay
12 分
Assess the view that contractionary monetary policy is always more effective than contractionary fiscal policy in reducing inflation.
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解題

Introduction: Define key terms. Inflation is a sustained increase in the general price level. Contractionary monetary policy involves actions by the central bank to reduce aggregate demand (AD), primarily by raising policy interest rates or reducing the money supply. Contractionary fiscal policy involves government action to decrease AD through increases in taxation and/or decreases in government expenditure.

Analysis of Contractionary Monetary Policy: An increase in interest rates increases the cost of borrowing for households and firms, while increasing the reward for saving. This leads to a reduction in consumption (C) and investment (I). Additionally, higher interest rates can attract foreign capital, causing the exchange rate to appreciate, which makes imports cheaper and exports more expensive, further reducing AD. As AD shifts to the left, demand-pull inflationary pressures are reduced. The primary advantages are that central banks are typically independent and can adjust rates quickly without political interference, and it can be fine-tuned. However, it suffers from time lags (typically 12 to 18 months to fully affect the economy) and may be ineffective if consumer and business confidence remains exceptionally high.

Analysis of Contractionary Fiscal Policy: A reduction in government spending (G) directly reduces AD, while an increase in income tax reduces disposable income, leading to lower C. An increase in corporate tax reduces retained profits, lowering I. These measures shift AD to the left, reducing demand-pull inflation. The main advantage of fiscal policy is that direct cuts in G have an immediate impact on the circular flow of income. However, fiscal policy is highly subject to political constraints (governments are reluctant to raise taxes or cut spending, especially before elections) and suffers from long implementation lags because tax and spending changes usually require legislative approval.

Evaluation: The claim that monetary policy is 'always' more effective must be challenged. First, the effectiveness depends on the cause of inflation. If inflation is cost-push (caused by rising supply-side costs, such as global oil prices), both contractionary monetary and fiscal policies are blunt tools that will reduce AD and control prices only at the cost of causing a severe recession and higher unemployment; supply-side policies would be more appropriate. Second, it depends on the state of the economy: in a severe boom with high optimism, modest interest rate rises may fail to dampen spending, whereas direct cuts in government infrastructure projects (fiscal policy) would guarantee a reduction in AD. Third, the two policies can conflict; if the government runs an expansionary fiscal policy while the central bank attempts contractionary monetary policy, the effectiveness of the monetary policy is severely undermined. In conclusion, while monetary policy is generally the preferred day-to-day tool for inflation management due to its flexibility and independence, it is not always more effective. The optimal approach is a coordinated policy mix where fiscal and monetary policies work in tandem.

評分準則

AO1 Knowledge and Understanding (Max 2 marks):
- 1 mark for defining inflation and identifying the tools of contractionary monetary policy (interest rates, money supply) and contractionary fiscal policy (taxation, government spending).
- 2 marks for a fully developed definition of both policies and their primary macroeconomic objectives.

AO2 Analysis (Max 6 marks):
- 1-3 marks for explaining the transmission mechanism of contractionary monetary policy (how higher interest rates lead to lower C and I, shifting AD left and reducing inflation) OR explaining fiscal policy. Only one policy is analyzed well.
- 4-6 marks for a balanced analysis of both policies, explaining how each shifts AD to the left, while also analyzing their respective limitations (such as time lags, impact on confidence, and political unpopularity).

AO3 Evaluation (Max 4 marks):
- 1-2 marks for identifying key evaluative criteria, such as the cause of inflation (demand-pull vs. cost-push), the state of confidence, or the need for policy coordination.
- 3-4 marks for a reasoned conclusion and judgment on whether monetary policy is 'always' more effective, supported by economic arguments (e.g., concluding that monetary policy is usually more flexible but its success depends on the cause of inflation and coordination with fiscal policy).

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