Macroeconomics 20th Edition by Campbell McConnell ,Stanley Brue ,Sean Flynn

Exercise 14

What will the multiplier be when the MPS is 0,.4,.6, and 1? What will it be when the MPC is 1,.90,.67,.50, and 0? How much of a change in GDP will result if firms increase their level of investment by $8 billion and the MPC is.80? If the MPC instead is.67?