題目：Raisin bran and milk are complementary goods. A decrease in the price of raisins will 答案：increase consumer surplus in the market for raisin bran and increase producer surplus in the market for milk.
題目：If price exceeds average costs under pure competition, in the long run ,______ firms will enter the industry, supply will ______, and price will be driven ______. 答案：more; increase; down
【題目】 Assume that we have a demand curve of the form.log(Q)=a-b×log(P)+c×log(I), where Q=quantity, P=price, I=income, and a, b, and c are positive constants. The income and price elasticities for the demand curve represented above are always equal to zero. ...
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