Scale Effects in Markets with Search
利用英国失业者数据估计搜寻匹配模型，检验规模对收到工作机会概率和工资分布的影响，发现规模效应仅存在于工资中，不影响匹配速度。
Estimates of aggregate matching functions may miss important scale effects in frictional labour markets because of the reactions of job seekers to scale. We estimate a semi-structural model of search and matching on a British sample of unemployed people, testing for scale effects on the probability of receiving an offer and on the distribution of wage offers. We find them only in wage offers but we also find that reservation wages rise to deliver higher post-unemployment wages but not faster matches. So aggregate matching functions should be unaffected by scale but wage equations should be showing them. Copyright 2006 Royal Economic Society.