4. IS-MP model. In order to help the US. economy, President Trump has argued that Congress should pass a substantial payroll tax cut {which would reduce the amount of taxes being taken out of workers' paychecks). a) What is the effect of a decrease in government taxes on the IS and MP curves in the short run":I h) According to the IS-MP model, what would happen to output and the real interest rate in the short run'iI Draw a diagram to help explain your answer. c) What would he the effect of the shock on consumption, investment, and taxes? Briey explain why. (1) Briefly explain how your answer in part c is related to \"crowding out\