An investor can design a risky portfolio based on two stocks, A and B. Stock A has an expected return of 16% and a standard deviation of return of 25%. Stock B has an expected return of 11% and a standard deviation of return of 10%. The correlation coefficient between the returns of A and B is .4. The risk-free rate of return is 9%. The proportion of the optimal risky portfolio that should be invested in stock B is approximately

Long-distance providers are becoming increasingly concerned about certain activities within their industry. various companies come together voluntarily to implement new standards of social responsibility that members must abide by. what seems to be the primary motivation in this case for an increased interest in social responsibility? - because corporations are creations of society, they are responsible for giving back to the communities in which they operate.- these companies have realized it is in their best interest to increase their social responsibility before they are once again subject to stricter regulations.- these companies are using social responsibility as a means to increase their profitability, both short term and long term.- long-distance providers have started taking pride in their industry and its record for social responsibility.- they feel a responsibility to their stockholders, employees, the government, investors, and society as a whole.

Consider each of the following cases: case accounting break-even unit price unit variable cost fixed costs depreciation 1 127,400 $ 38 $ 25 $ 711,000 ? 2 124,000 ? 41 2,500,000 $ 900,000 3 5,753 117 ? 171,000 100,000 required: (a) find the depreciation for case 1. (do not round your intermediate calculations.) (b) find the unit price for case 2. (do not round your intermediate calculations.) (c) find the unit variable cost for case 3. (do not round your intermediate calculations.)

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