A person is interested in constructing a portfolio. Two stocks are being considered. Let percent return for an investment in stock 1, and percent return for an investment in stock 2. The expected return and variance for stock 1 are and . The expected return and variance for stock 2 are and . The covariance between the returns is . a. What is the standard deviation for an investment in stock 1 and for an investment in stock 2

Suppose that a government that is skeptical of efforts to regulate prices charged by private companies is nevertheless concerned that an electric utility company is taking advantage of consumers with unfair pricing policies. which of the following policy options might most effectively enable the government to achieve its objectives in this situation? do nothing to all. turn the company into a public enterprise. use antitrust laws to increase competition. regulate the firm's pricing behavior.