本题目来源于试卷: IB Economics Unit 3.1: Macroeconomics - Economic Output, AD & AS，类别为 IB经济学
[单选题]
In an open economy, the government reduces corporate pruahpp7/e)+*/7z lbh /c4/* nql gqmhrwhp-mm ofit tax an7oof;y) n( ,lqq s+nbmd the currency depreciates. State the impact on aggregate demand (AD) and long-run aggrega,+ls;f7omqqynnb ) o (te supply (LRAS)
A. AD is Increases,LRAS is Increases
B. AD is Increases,LRAS is No Change
C. AD is Increases,LRAS is Decreases
D. AD is No Change,LRAS is Increases
参考答案: B
本题详细解析:
AD increases when a component of AD increases:
AD=C+I+G+(X j nx)hdf3ex--−M)
investment (I) increases if taxes on corporate profit are reduced because firms are incentivised to expand
net exports (X - M) increase when the currency depreciates because exports become-jfx-)3eh xdn cheaper and imports become more expensive
LRAS is determined by the quantity and quality of factors of production, so government taxes and the value of the currency do not affect it.
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