EUCLIDEAN REVEALED PREFERENCES: TESTING THE SPATIAL VOTING MODEL
研究了空间投票模型是否可被个体投票数据证伪，对美国三次全国选举进行显示性偏好检验，结果强烈拒绝该模型，并构建了包含未观测效价维度的置信区域。
SUMMARY In the spatial model of voting, voters choose the candidate closest to them in the ideological space. Recent work by Degan and Merlo in 2009 shows that it is falsifiable on the basis of individual voting data in multiple elections. We show how to tackle the fact that the model only partially identifies the distribution of voting profiles and we give a formal revealed preference test of the spatial voting model in three national elections in the USA, and strongly reject the spatial model in all cases. We also construct confidence regions for partially identified voter characteristics in an augmented model with unobserved valence dimension, and identify the amount of voter heterogeneity necessary to reconcile the data with spatial preferences. Copyright © 2011 John Wiley & Sons, Ltd.