Consider the following model of the IS curve without an international sector: Consumption: 𝐶 𝑡 𝑌 ¯ 𝑡 = 𝑎 ¯ 𝑐 − 𝑏 ¯ 𝑐 ( 𝑅 𝑡 − 𝑟 ¯ ) ; Investment: 𝐼 𝑡 𝑌 ¯ 𝑡 = 𝑎 ¯ 𝑖 − 𝑏 ¯ 𝑖 ( 𝑅 𝑡 − 𝑟 ¯ ) ; and Government expenditure: 𝐺 𝑡 = 𝑎 ¯ 𝑔 𝑌 ¯ 𝑡 . Note that 𝑏 ¯ 𝑐  can be a positive or negative real number. With this formulation, the IS curve is:单项选择题

A

horizontal.

B

vertical.

C

less steeply sloped than the “standard” IS curve.

D

more steeply sloped than the “standard” IS curve.

E

Not enough information is given.

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类似问题

Consider the IS curve 𝑌 ~ 𝑡 = 𝑎 ¯ − 𝑏 ¯ ( 𝑅 𝑡 − 𝑟 ¯ ) + 𝑥 ¯ 𝑌 ~ 𝑡 , where 𝑏 ¯ = 1 , 𝑥 ¯ = 1 / 4 , and 𝑅 𝑡 − 𝑟 ¯ = 0.03 . If there is a positive demand shock where the economy goes from 𝑎 ¯ = 0 to 𝑎 ¯ = 0.05 , then short-run output changes by ______ percentage points (enter a negative number for a fall in short-run output and a positive number for a rise in short-run output). Round your answer to the nearest tenth of a percent.

Using the IS curve 𝑌 ~ 𝑡 = 𝑎 ¯ − 𝑏 ¯ ( 𝑅 𝑡 − 𝑟 ¯ ) , in the long run,  𝑎 ¯ [ Select ] equals 0 equals 1 and 𝑅 𝑡 [ Select ] > < = 𝑟 ¯ , so that [ Select ] the economy's actual output equals potential output. the economy is in a boom the economy is in a recession .

Consider an economy with the following IS curve: 𝐼 𝑆 : 𝑌 ~ 𝑡 = 𝑎 ¯ − 𝑏 ¯ ( 𝑅 𝑡 − 𝑟 ¯ )   Suppose we assume 𝑎 ¯ = 0.03 , 𝑏 ¯ = 1 , 𝑅 𝑡 = 𝑟 ¯ = 0.045 . Let Δ 𝑌 ~ 𝑡 = 𝑌 ~ 𝑡 − 𝑌 ~ 𝑡 ′ , where 𝑌 ~ 𝑡 is short-run output when the real interest rate equals 𝑅 𝑡 and 𝑌 ~ 𝑡 ′ is short-run output when the real interest rate equals 𝑅 𝑡 ′ . If the real interest rate falls from 𝑅 𝑡 to 𝑅 𝑡 ′ = 0.02 , then Δ 𝑌 ~ 𝑡 = ______ percent. Round your answer to the nearest tenth of a percent.

Consider the IS curve 𝑌 ~ 𝑡 = 𝑎 ¯ − 𝑏 ¯ ( 𝑅 𝑡 − 𝑟 ¯ ) + 𝑥 ¯ 𝑌 ~ 𝑡 , where 𝑏 ¯ = 1 , 𝑥 ¯ = 1 / 4 , and 𝑅 𝑡 − 𝑟 ¯ = 0 . If there is no demand shock, i.e. 𝑎 ¯ = 0 , and the real interest rate increases by 1 percentage points, then short-run output changes by ______ percentage points (enter a negative number for a fall in short-run output and a positive number for a rise in short-run output). Round your answer to the nearest tenth of a percent.

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