Jury Size and the Free Rider Problem
Jury Size and the Free Rider Problem
复制标题
陪审团规模和搭便车问题
DOI：
10.1093/jleo/19.1.24
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发表时间：
2003
影响因子：
1.1
通讯作者：
K. Mukhopadhaya
中科院分区：
文献类型：
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作者：
K. Mukhopadhaya
最近一段时间，美国的法官说，6人陪审团不如12人陪审团。但是，根据什么理由，一个较小的陪审团是劣等的？一个论点是孔多塞陪审团定理，它说，一个更大的陪审团将达成一个更准确的决定。然而，这是假设每个陪审员的信息与陪审团的规模无关。我证明了陪审员的信息确实取决于陪审团的规模。在一个更大的陪审团中，每个陪审员在法庭上集中注意力的动机较小，即使他们都承诺听取并做出判决。由于搭便车的问题，一个更大的陪审团实际上可能做出更糟糕的决定。研究结果适用于许多由委员会和工作团队做出决策的环境。版权所有2003年，牛津大学出版社。
In recent times, judges in the United States have said that 6-person juries are inferior to 12-person juries. But by what reasoning is a smaller jury inferior? One argument is the Condorcet jury theorem, which says that a larger jury will reach a more accurate decision. This, however, assumes that the information of each juror is independent of the size of the jury. I show that a juror's information does depend on the size of the jury. In a larger jury panel each juror has less incentive to pay attention in the court, even though they are all pledged to hear and deliver a verdict on a trial. Because of the free-rider problem, a larger jury may actually make poorer decisions. The results apply to many environments in which decisions are made by committees and work teams. Copyright 2003, Oxford University Press.