2. Temporary productivity shocks in the dynamic macroeconomic model: Consider the dynamic macroeconomic model presented in lectures. Show the effects on current aggregate output, employment, consumption, investment, the real wage and the real interest rate of (a) A temporary negative shock to total factor productivity (TFP). Assume that the shock is sufficiently shortlived that the wealth effect can be ignored. (b) An expected decrease in future TFP. Again, treat all wealth effects as negligible. (0) Suppose two economists agree that TFP will be lower in the future but are debating whether the observed fall in current output is partially due to a decrease in current TFP. Which variables should they look at to determine whose view is correct