2.2.3 投資 (I)：练习题

• a.Capital consumption (depreciation) is equal to \(£450\) million.
• b.The firm is currently operating at the minimum point of its long-run average cost curve.
• c.The capital stock of the economy is shrinking because depreciation exceeds gross investment.
• d.The firm has increased its productive capacity during the year.

• a.There will be no effect on investment as exports are a separate component of AD.
• b.Firms will increase investment to expand productive capacity to meet the rising demand.
• c.Firms will decrease investment because the cost of raw materials will likely rise.
• d.Investment will fall as firms switch from capital-intensive to labour-intensive production.

• a.By ensuring that firms always invest at the point where marginal cost equals marginal revenue.
• b.By regulating the access to credit through the central bank's monetary policy committee.
• c.By causing fluctuations in business confidence that lead to volatile investment spending regardless of interest rates.
• d.By determining the rate of capital consumption based on technical obsolescence.

• a.Only the LRAS curve shifts to the right as productivity improves immediately.
• b.The AD curve shifts to the right due to an increase in investment (I).
• c.The SRAS curve shifts to the left due to increased costs of borrowing.
• d.The AD curve shifts to the left because SMEs will have higher debt obligations.

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。