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： Nick can purchase each milkshake for $2. For the first milkshake purchased Nick is willing to pay $4, for the second milkshake $3, for the third milkshake $2 and for the fourth milkshake $1. What is the value of Nick's consumer surplus? 答案： 3
題目：Suppose that the price of eggs increases from 75 cents to $1.00 per dozen and as a result a typical farmer experiences a decrease in egg sales from 300 to 200 dozen per week. Using the method of average values, the price elasticity of demand is 答案：1.4
【題目】：The figure shows the market for books before and after a sales tax is introduced. The tax on books is ____ a book, buyers pay ____ of tax per book, and the governments tax revenue is ____. 【答案】：$1.20; $0.80; $12
【題目】：Raisin bran and milk are complementary goods. A decrease in the price of raisins will decrease consumer surplus in the market for raisin bran and increase producer surplus in the market for milk. decrease consumer surplus in the market for raisin bran and decreas ...
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