An open economy is fully characterized by the following IS curve, monetary policy rule, and Phillips curve: IS: ๐‘Œ ~ ๐‘ก = ๐‘Ž ยฏ โˆ’ ( ๐‘ ยฏ ๐‘– + ๐‘ ยฏ ๐‘› ๐‘ฅ ) ( ๐‘… ๐‘ก โˆ’ ๐‘Ÿ ยฏ ) + ๐‘ ยฏ ๐‘› ๐‘ฅ ( ๐‘… ๐‘ก โˆ— โˆ’ ๐‘Ÿ ยฏ ) , where ๐‘… ๐‘ก โˆ— is the real interest abroad, ๐‘Ž ยฏ = ๐‘Ž ยฏ ๐‘ + ๐‘Ž ยฏ ๐‘– + ๐‘Ž ยฏ ๐‘” + ๐‘Ž ยฏ ๐‘› ๐‘ฅ โˆ’ 1 , and ๐‘Ž ยฏ ๐‘› ๐‘ฅ = ๐‘Ž ยฏ ๐‘’ ๐‘ฅ โˆ’ ๐‘Ž ยฏ ๐‘– ๐‘š . Monetary policy rule: ๐‘… ๐‘ก โˆ’ ๐‘Ÿ ยฏ = ๐‘š ยฏ ( ๐œ‹ ๐‘ก โˆ’ ๐œ‹ ยฏ ) Phillips curve: ๐œ‹ ๐‘ก = ๐œ‹ ๐‘ก โˆ’ 1 + ๐‘ฃ ยฏ ๐‘Œ ~ ๐‘ก + ๐‘œ ยฏ ๐‘ก Assume that ๐‘Ž ยฏ = 0 , ๐‘Ž ยฏ ๐‘› ๐‘ฅ = 0 , ๐‘ ยฏ ๐‘– = ๐‘ ยฏ ๐‘› ๐‘ฅ = 0.2 , ๐‘ฃ ยฏ = 0.5 , ๐‘… ๐‘ก โˆ— = 0.04 , ๐‘Ÿ ยฏ = 0.03 , ๐œ‹ ๐‘ก โˆ’ 1 = ๐œ‹ ยฏ = 0.02 , ๐‘š ยฏ = 1 , and ๐‘œ ยฏ ๐‘ก = 0.025 . Calculate ๐œ‹ ๐‘ก = ______ percent. Round your answer to the nearest tenth of a percent. Note: Calculate your answers for this one and the next three questions in a spreadsheet application. Enter rounded numbers in the answer box for each question. Do not, however, round your intermediate answers in the spreadsheet.ๆ•ฐๅ€ผ้ข˜

็™ปๅฝ•ๅณๅฏๆŸฅ็œ‹ๅฎŒๆ•ด็ญ”ๆกˆ

ๆˆ‘ไปฌๆ”ถๅฝ•ไบ†ๅ…จ็ƒ่ถ…50000้“็œŸๅฎžๅŽŸ้ข˜ไธŽ่ฏฆ็ป†่งฃๆž,็Žฐๅœจ็™ปๅฝ•,็ซ‹ๅณ่Žทๅพ—็ญ”ๆกˆใ€‚

็ฑปไผผ้—ฎ้ข˜

An open economy is fully characterized by the following IS curve, monetary policy rule, and Phillips curve: IS: ๐‘Œ ~ ๐‘ก = ๐‘Ž ยฏ โˆ’ ( ๐‘ ยฏ ๐‘– + ๐‘ ยฏ ๐‘› ๐‘ฅ ) ( ๐‘… ๐‘ก โˆ’ ๐‘Ÿ ยฏ ) + ๐‘ ยฏ ๐‘› ๐‘ฅ ( ๐‘… ๐‘ก โˆ— โˆ’ ๐‘Ÿ ยฏ ) , where ๐‘… ๐‘ก โˆ— is the real interest abroad, ๐‘Ž ยฏ = ๐‘Ž ยฏ ๐‘ + ๐‘Ž ยฏ ๐‘– + ๐‘Ž ยฏ ๐‘” + ๐‘Ž ยฏ ๐‘› ๐‘ฅ โˆ’ 1 , and ๐‘Ž ยฏ ๐‘› ๐‘ฅ = ๐‘Ž ยฏ ๐‘’ ๐‘ฅ โˆ’ ๐‘Ž ยฏ ๐‘– ๐‘š . Monetary policy rule: ๐‘… ๐‘ก โˆ’ ๐‘Ÿ ยฏ = ๐‘š ยฏ ( ๐œ‹ ๐‘ก โˆ’ ๐œ‹ ยฏ ) Phillips curve: ๐œ‹ ๐‘ก = ๐œ‹ ๐‘ก โˆ’ 1 + ๐‘ฃ ยฏ ๐‘Œ ~ ๐‘ก + ๐‘œ ยฏ ๐‘ก Assume that ๐‘Ž ยฏ = 0 , ๐‘Ž ยฏ ๐‘› ๐‘ฅ = 0 , ๐‘ ยฏ ๐‘– = ๐‘ ยฏ ๐‘› ๐‘ฅ = 0.2 , ๐‘ฃ ยฏ = 0.5 , ๐‘… ๐‘ก โˆ— = 0.04 , ๐‘Ÿ ยฏ = 0.03 , ๐œ‹ ๐‘ก โˆ’ 1 = ๐œ‹ ยฏ = 0.02 , ๐‘š ยฏ = 1 , and ๐‘œ ยฏ ๐‘ก = 0.045 . Calculate ๐œ‹ ๐‘ก = ______ percent. Round your answer to the nearest tenth of a percent. Note: Calculate your answers for this one and the next three questions in a spreadsheet application. Enter rounded numbers in the answer box for each question. Do not, however, round your intermediate answers in the spreadsheet.

Suppose the Federal Reserve decreases interest rates from 4% to 3%, which shifts aggregate demand and increases short-run output to 5.0%. If there are no other shocks to the economy, and the resulting change in inflation is 2.0 percentage points, what is the value of the parameter ๐œˆ ยฏ ? Round your answer to the nearest tenth.

Suppose the Federal Reserve decreases interest rates from 4% to 3%, which shifts aggregate demand and increases short-run output to 3.0%. If there are no other shocks to the economy, and the resulting change in inflation is 1.5 percentage point, what is the value of the parameter ๐œˆ ยฏ ? Round your answer to the nearest tenth.

You are a staff economist with the Federal Reserve. The chairman says to you, โ€œWe are seeing signs of inflation above our target rate, and I donโ€™t think the Phillips curve is very steep. What should we do to bring the rate back to our target rate?โ€ How do you respond? Answer:ย  โ€œBecause the Phillips curve is relatively flat, we need to [ Select ] decrease increase interest rates [ Select ] by just a little very aggressively in order to [ Select ] raise lower the investment-to-potential output ratio and hence short-run output. A flat Phillips curve requires a [ Select ] big change small change in short-run output in order to lower the inflation rate.โ€

ๆ›ดๅคš็•™ๅญฆ็”Ÿๅฎž็”จๅทฅๅ…ท

ๅŠ ๅ…ฅๆˆ‘ไปฌ๏ผŒ็ซ‹ๅณ่งฃ้” ๆตท้‡็œŸ้ข˜ ไธŽ ็‹ฌๅฎถ่งฃๆž๏ผŒ่ฎฉๅคไน ๅฟซไบบไธ€ๆญฅ๏ผ