Macroeconomics 6th Edition by Robert Hall,Marc Lieberman

Exercise 1

For each of the following illustrate the immediate and long-run impact on real GDP using the classical model (labor market, production function, or loanable funds market) and state what happens to real GDP (increase, decrease, or remain unchanged).
a. Increased immigration
b. An aging of the population with an increasing proportion of retirees
c. A decline in the tax rate on corporate profits
d. A reduction of unemployment benefits
e. The development of the Internet