In what year was the Bretton Woods system of currency exchange set up?

A monopolistic competitor will maximize its profits at the output level at which

A) TC = TR. B) MC = MR. C) the MC curve intersects the demand curve. D) MR = ATC.

When an economy is operating well below its full-employment capacity and the marginal propensity to consume is 0.75, a $10 billion increase in investment spending will cause the equilibrium output to rise by:

A. $5 billion. B. $10 billion. C. $20 billion. D. $40 billion.