If the cost of labor decreases the isocost line will A. stay the same. B. shift inward in parallel fashion. C. rotate outward around the point where only capital is employed in production. D. shift outward in parallel fashion.

Stock a has a beta of 1.2 and a standard deviation of 20%. stock b has a beta of 0.8 and a standard deviation of 25%. portfolio p has $200,000 consisting of $100,000 invested in stock a and $100,000 in stock b. which of the following statements is correct? (assume that the stocks are in equilibrium.) (a) stock b has a higher required rate of return than stock a. (b) portfolio p has a standard deviation of 22.5%. (c) portfolio p has a beta equal to 1.0. (d) more information is needed to determine the portfolio's beta. (e) stock a's returns are less highly correlated with the returns on most other stocks than are b's returns.

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d

Copan italia is a distributor of laboratory products and manufacturer of laboratory commodities, including transfer pipettes and flexible hematology cups used on a variety of automatic instruments to count blood corpuscle elements. copan's says that the company's business is to continually work to improve the quality of the collection and preservation of the microbiological sample in the "pre-analytical phase," as the demand for better protection of the specimen is growing day by day.