Economics can render service in the area of exchange, but its tools fin

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问题       Economics can render service in the area of exchange, but its tools find less
   purpose when applied to paradigms dominated by alternative models of
   transactions and social relationships. In small groups gift-giving is substituted
   for the role of exchange, which entails obligation: people receiving gifts are
(5) expected to reciprocate in the future and this reciprocity binds small groups
   together, whereas exchange rarely does so. Two people exchange only when
   both benefit, neither incurring a social obligation as a result, and where social
   obligations exist, exchange may not work well. Exchange nevertheless allows
   for extremely complex interactions among strangers:  when employing a
(10)  product, a consumer benefits from the efforts of hundreds of anonymous people
   who have contributed to that commodity. Such analysis also has its limits in the
   case of an area such as government, for economics seeks regularities in social
   life, which are more likely to occur when no one individual has an appreciable
   effect on the group.

选项 A、Small Groups and Governments, A Comparison of Two Economic Methods
B、Social Obligation and the Consumer：A Case Study
C、Regular vs. Irregular Systems in Economics
D、The Comparative Strength of Economics in Various Areas
E、The Triumph of Analysis in Economic Theory

答案 D

解析

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Economics can render service in the area of exchange, but its tools fin

APPROPRIATE:A、lendB、surrenderC、approveD、emptyE、correctB

RIFT:A、loyaltyB、reunionC、surrenderD、slaveryE、constancyB