. The equality of MR and MC is essential for profit maximization in all market structures because if multiple choice 1 MR and MC are equal, economic profits will be zero. MR is less than MC, producing more will increase profits. MR and MC are equal, any other output level will result in reduced profits. MR is greater than MC, producing more will lower profits.

Rate of return douglas keel, a financial analyst for orange industries, wishes to estimate the rate of return for two similar-risk investments, x and y. douglas's research indicates that the immediate past returns will serve as reasonable estimates of future returns. a year earlier, investment x had a market value of $27 comma 000; and investment y had a market value of $46 comma 000. during the year, investment x generated cash flow of $2 comma 025 and investment y generated cash flow of $ 6 comma 770. the current market values of investments x and y are $28 comma 582 and $46 comma 000, respectively. a. calculate the expected rate of return on investments x and y using the most recent year's data. b. assuming that the two investments are equally risky, which one should douglas recommend? why?