说服产生(Diamond)悖论
理论经济学
2021-04-06 v4 综合经济学
经济学
摘要
本文扩展 Wolinsky(1986)的序贯搜寻模型,允许企业选择向到访消费者披露多少匹配价值信息。这恢复了 Diamond 悖论(Diamond 1971):不存在消费者进行主动搜寻的对称均衡,因此消费者获得零剩余而企业获得垄断利润。将情形修改为价格被广告的情形,我们发现无主动搜寻的结果持续存在,尽管由此产生的对称均衡是企业按边际成本定价的均衡。
引用
@article{arxiv.2011.13900,
title = {Persuasion Produces the (Diamond) Paradox},
author = {Mark Whitmeyer},
journal= {arXiv preprint arXiv:2011.13900},
year = {2021}
}
备注
Update on 7 Dec 2020: fixed minor errors throughout, corrected the proofs of several lemmata in Section 2.1 (leaving the results unchanged), added in an example (Example 2.7), and removed the final proposition