Refer to Table 4-8. If a minimum wage of $9.50 an hour is mandated, what is the quantity of labor supplied?

Assume that Sharon purchases $5,000 worth of a stock. To do so she uses $1,000 of her own money and borrows the remaining $4,000 at a 7.0% interest rate. If the stock's value decreases by 10% in one year and she has to sell the stock at that time, what is her rate of return?

a. ?10% b. ?50% c. ?78% d. ?156%

Suppose that monopolistically competitive firms in a certain market are experiencing losses. In the transition from this initial situation to a long-run equilibrium,

a. the number of firms in the market decreases. b. each existing firm experiences a decrease in demand for its product. c. each firm experiences an upward shift of its marginal cost and average total cost curves. d. each existing firm's average total cost falls to bring economic profit back to zero.