1. in a market served by a monopoly, the marginal cost is $60 and the price is $110. in a perfectly competitive market, the marginal cost is $60. if the marginal cost increased from $60 to $75, the monopoly would raise its price and the price in the perfectly competitive market would by $15; increase by $15 by $75; increase to $75 by less than $15; increase to $75 to $115; remain unchanged at $60

The management of a private investment club has a fund of $250,000 earmarked for investment in stocks. to arrive at an acceptable overall level of risk, the stocks that management is considering have been classified into three categories: high risk (x), medium risk (y), and low risk (z). management estimates that high risk stocks will have a rate of return of 15%/year; medium risk stocks, 10%/year; and low risk stocks, 6%/year. the amount of money invested in low risk stocks is to be twice the sum of the amount invested in stocks of the other two categories. if the investment goal is to have a rate of return of 9% on the total investment, determine how much the club should invest in each type of stock. (assume that all the money available for investment is invested.)

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Suppose that each country completely specializes in the production of the good in which it has a comparative advantage, producing only that good. in this case, the country that produces jeans will produce million pairs per week, and the country that produces corn will produce million bushels per week.