GRE考试

【单选题】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 Line for the role of exchange, which entails obligation: people receiving gifts are 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 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. According to the passage, the dynamics of small group economies differ from those of large group economies in that________.
A、the members of small groups tend to have a greater degree of social regularity than the members of large groups
B．people in small groups carry an advantage in the arena of exchange because they are tied by social obligation
C．the manufacturer of a commodity in a small group economy is more likely to be known by the members of the group
D．the people who contribute to the production of a gift are less essential to small groups than those who exchange commodities are in large groups
E．a system of social obligation diminishes the number of parties necessary to a gift-giving transaction

网考网参考答案：E
网考网解析：
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