If the total assets of a bank equals $50,000 and the total liabilities of the bank equal $20,000, stockholders' equity will equal:

Countries import some goods and export other goods primarily because of:

A) unemployment. B) self-sufficiency. C) comparative advantage. D) the law of increasing opportunity cost.

Wally's Widgets currently hires 8 workers. The average product of labor is 15 widgets per day, and the marginal product of a 9th worker is expected to be 13 widgets per day

If the firm hires the 9th worker, what will happen to the average product of labor? Explain.