A-Level经济真题每期一练（23）

上期真题答案：1.B 2.A 3.C 4.C 5.C

接下来是今天的真题，一起练起来呀~

1.One reason why the free market fails to achieve an optimal allocation of scarce resources is because

A public goods are provided free ofcharge to users.

B positive externalities lead tooverproduction of a good.

C there is underproduction of goods with positiveexternalities.

D individuals’ incomes and wealth are not identical.

2.Negative externalities exist in a market for a good giving rise to a misallocation of resources. This misallocation is most likely to have resulted from

A the product being over-priced.

B over-production of the product.

C too little consumption of the product.

D too few resources devoted to producing the