4 First theorem of welfare economics 5 General equilibrium analysis 6Giffen good 7Intertemporal price discrimination 8 Law of diminishing marginal returns 9Marginal rate of technical substitution 10 Publicgood 得分阅卷教师 二、简答题：（共10分) 1.An antique dealer regularly buys objects at home-town auctions whose bidders are limited to other dealers.Most of her successful bids turn out to be financially worthwhile.because she is able toresel the antiques for a profit.On occasion,however,she travels toa nearby town to bid in n ion that is openo the public She often finds that on the rar occasions in which she does bid successfully.she is disappointedthe antique cannot be sok4 First theorem of welfare economics 5 General equilibrium analysis 6 Giffen good 7 Intertemporal price discrimination 8 Law of diminishing marginal returns 9 Marginal rate of technical substitution 10 Public good 二、简答题：（共 10 分） 1. An antique dealer regularly buys objects at home-town auctions whose bidders are limited to other dealers. Most of her successful bids turn out to be financially worthwhile, because she is able to resell the antiques for a profit. On occasion, however, she travels to a nearby town to bid in an auction that is open to the public. She often finds that on the rare occasions in which she does bid successfully, she is disappointed - the antique cannot be sold 得分 阅卷教师