【題目】Good A and good B are substitutes in production. The demand for good A increases so that the price of good A rises. The increase in the price of good A shifts the 【答案】：supply curve of good B leftward.
【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】 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 3.0 1 ...
題目：Under which of the following conditions would the interdiction of illegal drugs result in a decrease in the quantity of drugs sold and in a decrease in total spending on illegal drugs by drug users? 答案：The price elasticity of demand for illegal drugs is 1.3
題目：Suppose there are only two firms supplying in the market and they produce a homogeneous good. Two firms produce the good with the same constant marginal cost. Firms compete by setting price simultaneously . The equilibrium price of both firms must 答案：equal to the marginal cost.
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