Fixed-Price Approximations to Optimal Efficiency in Bilateral Trade
Fixed-Price Approximations to Optimal Efficiency in Bilateral Trade
复制标题
双边贸易中最优效率的固定价格近似值
DOI:
10.2139/ssrn.3460336
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
J. Vondrák
中科院分区:
文献类型:
--
作者:
Zi Yang Kang;J. Vondrák
This paper studies fixed-price mechanisms in bilateral trade with ex ante symmetric agents. We show that the optimal price is particularly simple: it is exactly equal to the mean of the agents' distribution. The optimal price guarantees a worst-case performance of at least 1/2 of the first-best gains from trade, regardless of the agents' distribution. We also show that the worst-case performance improves as the number of agents increases, and is robust to various extensions. Our results offer an explanation for the widespread use of fixed-price mechanisms for size discovery, such as in workup mechanisms and dark pools.
DOI:
10.1016/j.geb.2015.10.009
发表时间:
2015
期刊:
Games Econ. Behav.
影响因子:
--
作者:
Moritz;und A. Kleiner
通讯作者:
und A. Kleiner