What is the shape of the total revenue curve derived from a horizontal demand curve?

If firms and workers have adaptive expectations, what impact will expansionary monetary policy have on inflation, unemployment, and the Phillips curve?

What will be an ideal response?

In the Keynesian model,

a. the autonomous expenditure multiplier is lower than the tax multiplier. b. the autonomous tax multiplier is positive and large. c. the autonomous tax multiplier is larger (in absolute value) than the tax multiplier. d. the tax multiplier is equal to 1. e. none of the above.