In an efficient market, the cost of equity for a highly risky firm: In an efficient market, the cost of equity for a highly risky firm: decreases as the beta of the firm's stock increases. will be less than the market rate but higher than the risk-free rate. changes by 1 percent for every 1 percent change in the risk-free rate. must equal the market rate of return. increases in direct relation to the stock's systematic risk.

Miami incorporated estimates that its retained earnings break point (bpre) is $21 million, and its wacc is 13.40 percent if common equity comes from retained earnings. however, if the company issues new stock to raise new common equity, it estimates that its wacc will rise to 13.88 percent. the company is considering the following investment projects: project size irr a $4 million 14.00% b 5 million 15.10 c 4 million 16.20 d 6 million 14.20 e 1 million 13.42 f 6 million 13.75 what is the firm's optimal capital budget?