______________ is the amount of production provided per unit of a factor of production.

Agreements to abolish most barriers to trade among nations are known as:

a. collusive trade agreements. b. discriminatory trade agreements. c. neutral trade agreements. d. preferential trade agreements. e. retaliatory trade agreements.

Suppose the equilibrium level of national income is $800 billion and the MPC is 0.8 . Suppose as well that people decide to increase their saving by $30 billion. Before this change, people intended to save $100 billion and producers intended to invest $100 billion. The new equilibrium level of national income is

a. $600 billion b. $650 billion c. $680 billion d. $730 billion e. $800 billion