Consider a competitive market for which the quantities demanded and supplied (per year) at various prices are given as follows: price (dollars) demand (millions) supply (millions) 60 22 14 80 20 16 100 18 18 120 16 20 a) calculate the price elasticity of demand when the price is $100. b) calculate the price elasticity of supply when the price is $100. c) the price elasticity of supply is nothing. d) the price elasticity of demand is negative 0.556

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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.