National saving minus investment equals the current account

If the wage is kept above the equilibrium wage for any reason, the result is

a. cyclical unemployment. b. frictional unemployment. c. seasonal unemployment. d. structural unemployment.

Imagine that you borrow $1,000 for one year and at the end of the year you repay the $1,000 plus $100 of interest. If the inflation rate was 7%, what was the real interest rate you paid?

A) 17 percent B) 10 percent C) 7 percent D) 3 percent