Governments can affect the level of aggregate demand in a direct way by changing

What is the difference between the present value of $550 to be received after 3 years and after 5 years from now at an annual interest of 15 percent?

a. $73.49 b. $61.60 c. $250.02 d. $88.11

If workers expect inflation, and negotiate wage increases that exactly match price increases, the result is a

a. horizontal aggregate supply curve at the level of potential GDP. b. vertical aggregate supply curve at the level of potential GDP. c. horizontal aggregate demand curve at the level of potential GDP. d. vertical aggregate demand curve at the level of potential GDP.