时    间：2023年4月4日（周二）15:30-17:00

地    点：史带楼303室

题    目：Industry-optimal Information in a Search Market

主讲人：胡岠 副教授

主持人：陆卓然 助理教授

摘    要：

This paper studies the welfare effects of information in a sequential consumer search environment. Consumers search in the market and observe a noisy signal about the match value upon being matched with a firm, based on which they make their purchasing decisions. We construct the class of conditional unit-elastic demand signal distributions such that every equilibrium that can possibly arise under a feasible signal distribution can be achieved by a signal distribution within this class, based on which we investigate the industry-optimal information in this market. Contrary to the conventional wisdom that lower search cost promotes competition and reduces industry surplus, we find that the optimal industry surplus is strictly increasing as the search cost decreases. We also characterize the industry-optimal signal distribution for a large class of value distributions.

个人简介：

胡岠是北京大学国家发展研究院经济学副教授。他于2016年获得宾夕法尼亚大学经济学博士学位。他的主要研究领域是博弈论和信息经济学。他的研究成果发表于经济理论的顶级期刊Journal of Economic Theory，The Rand Journal of Economics等。