HKDSE · 試験対策

Economics 試験対策

Mastering HKDSE Economics requires precision in both graphical illustration and rigorous conceptual application. This guide targets the exact criteria examiners look for, from the Alchian-Allen effect to the short-run and long-run aggregate supply dynamics, helping you secure every mark on Paper 1 and 2.

読了時間 4 分更新日: 2026年6月21日

試験の概要

試験数
2
満点
165
制限時間
3時間 30分
出題形式
4
試験時間配点問題数配点比率出題形式
Paper 1 (Multiple Choice)1時間454530%Multiple Choice (Paper 1)
Paper 2 (Written)2時間 30分1201270%Short Questions (Paper 2 Section A), Structured Questions (Paper 2 Section B), Elective Questions (Paper 2 Section C)
評価段階
5**5*54321U
電卓の規定

Use only calculators on the HKEAA Approved List, bearing the 'H.K.E.A.A. APPROVED' (or older 'H.K.E.A. APPROVED') label. Programmable scientific models (e.g. Casio fx-50FH II, fx-3650P II) are allowed, and you MAY keep your own formulas/programs stored in memory — HKDSE does not require you to clear it. Graphic-display (graphing) and CAS/symbolic calculators are not on the approved list and must not be used.

  • AO1: AO1: Recall and understand economic facts, concepts, theories and principles. (30%)
  • AO2: AO2: Apply economic analysis to real-world issues. (45%)
  • AO3: AO3: Evaluate economic policies, arguments, proposals and practical issues. (25%)

過去問と採点基準にもとづいて作成（2021–2025）。

電卓プログラム

Percentage Change

Casio fx-50FH II / fx-3650P II (HKEAA-approved programmable)

目的: \(\%\Delta=\dfrac{\text{new}-\text{old}}{\text{old}}\times100\).

使う場面: Growth rates, inflation, and changes in price/quantity.

手順
Prompt old, new; outputs the % change.
プログラム
?→O:?→N:(N-O)÷O×100

試験での注意: A negative result means a fall.

Price Elasticity of Demand

Casio fx-50FH II / fx-3650P II (HKEAA-approved programmable)

目的: \(\text{PED}=\dfrac{\%\Delta Q}{\%\Delta P}\).

使う場面: Judging elastic (>1) vs inelastic (<1) demand.

手順
Prompt %ΔQ, %ΔP; outputs PED (use magnitude).
プログラム
?→Q:?→P:Q÷P

試験での注意: Usually quoted as a magnitude; demand PED is normally negative.

よくあるミス

  1. 1high影響する配点: 2Scarcity, choice and opportunity cost

    Defining 'CuMask' or other government-distributed items as 'free goods' because citizens receive them for free.

    回避方法: Define 'free goods' strictly by opportunity cost: a good is a free good only if its production/consumption involves zero opportunity cost. Government-distributed items are 'scarce resources' and carry high opportunity costs, thus they are 'economic goods' distributed free of charge.
  2. 2high影響する配点: 2National income

    Confusing Consumption Vouchers with Government Consumption Expenditure (G) in GDP expenditure-approach calculations.

    回避方法: Clarify that consumption vouchers are 'transfer payments' and are excluded from G. They only enter GDP when spent by individuals, at which point they are counted as Private Consumption Expenditure (C).
  3. 3medium影響する配点: 4Money demand, money supply and interest rate determination

    Explaining changes in price level using the Quantity Theory of Money (QTM) formula (MV = PY) without explicitly stating the required constant assumptions.

    回避方法: Always state explicitly that both the velocity of circulation (V) and real output (Y) are assumed to be constant in the short run (percentage change of V and Y = 0) before showing that a change in M leads to a proportional change in P.
  4. 4high影響する配点: 3The determination of level of output and price

    In Aggregate Demand-Aggregate Supply (AD-AS) diagrams, failing to label axes correctly or missing arrows showing curve shifts.

    回避方法: Label the vertical axis as 'Price Level' (not Price) and horizontal axis as 'Aggregate Output' or 'Real GDP' (not Quantity). Ensure clear directional arrows are drawn on shifted curves and new equilibrium points (e.g. E0 to E1) are explicitly labeled.
  5. 5medium影響する配点: 4The determination of level of output and price

    Stating that a natural disaster only shifts Aggregate Supply (AS) without recognizing its simultaneous negative impact on Aggregate Demand (AD).

    回避方法: Explain that factory closures and infrastructure destruction shift SRAS leftward, while massive job losses, income reductions, and business pessimism simultaneously shift AD leftward.
  6. 6high影響する配点: 2Price elasticity of demand and supply

    Failing to compare relative percentage changes when explaining why total expenditure falls under inelastic demand when price decreases.

    回避方法: State explicitly that under inelastic demand, the percentage decrease in price is greater than the percentage increase in quantity demanded, which leads to a decrease in total consumer expenditure.

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