题目
题目

FA25 ECON 302 002 Final Exam

数值题

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.

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思路分析
We are given the IS curve in the form: Ŷ_t = â̄ − b̄(Ṙ_t − r̄) + x̄ Ŷ_t, with b̄ = 1, x̄ = 1/4, and Ṙ_t − r̄ = 0.03. First, rearrange the IS equation to solve for Ŷ_t in terms of the exogenous variables: Ŷ_t − x̄ Ŷ_t = â̄ − b̄(Ṙ_t − r......Login to view full explanation

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类似问题

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.

Consider an economy with the following IS curve: 𝐼 𝑆 : 𝑌 ~ 𝑡 = 𝑎 ¯ − 𝑏 ¯ ( 𝑅 𝑡 − 𝑟 ¯ )   Suppose we assume 𝑎 ¯ = − 0.02 , 𝑏 ¯ = 1 , 𝑅 𝑡 = 𝑟 ¯ = 0.06 . 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 ′ = 0.04 , then Δ 𝑌 ~ 𝑡 = ______ percent. Round your answer to the nearest tenth of a percent.

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