Macroeconomics 12th Edition by Rudiger Dornbusch ,Stanley Fischer,Richard Startz

Exercise 1

Suppose that GDP is $40 billion below its potential level. It is expected that next-period GDP will be $20 billion below potential and that two periods from now it will be back at its potential level. You are told that the multiplier for government spending is 2 and that the effects of the increased government spending are immediate. What policy actions can be taken to put GDP back on target each period