in productivity on Output, Consumption, and Price level? 2. What is the effect of a termpoary increase in productivity in the Keynesian model, with sticky prices? Is your answer different to part 1? If so, explain why. Make sure that you discuss the short, the medium, and the long run. (4) Baumol Tobin Model In class, we derived the Baumol-Tobin money demand function under the assumption that at the beginning o each