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 ru+lwj+a n y:u5educes corporate profit tax and the c5.nv qkd84lsd urrency depreciates. State the impact on aggregate demavqk5l8dd.n s 4nd (AD) and long-run aggregate 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+( q w dq52.gsohsw*p6mG+(X−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 cheaperqss*hog.q52p (w m 6wd 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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