Suppose that many stocks are traded in the market and that it is possible to borrow at the risk-free rate, rƒ. The characteristics of two of the stocks are as follows: Stock Expected Return Standard Deviation A 7 % 30 % B 10 % 70 % Correlation = –1 a. Calculate the expected rate of return on this risk-free portfolio? (Hint: Can a particular stock portfolio be substituted for the risk-free asset?) (Round your answer to 2 decimal places.)

Match each event to its effect on the equilibrium interest rate and the amount of investment in the loanable funds market. higher interest rate, greater investment higher interest rate, less investment lower interest rate, less investment lower interest rate, greater investment immediate consumer gratification is no longer preferred by people. an efficient new source of energy effectively increases the return on owning a factory. a wave of retirees stops working and begins drawing on retirement savings.