Equilibrium discovery and preopening mechanisms in an experimental market

We experimentally analyze how to design preopening mechanisms facilitating coordination on high equilibrium liquidity and gains from trade. We allow a call auction to be preceded by a preopening or not, preopening orders to be binding or not, and the opening time to be deterministic or random. When the preopening is nonbinding, traders place manipulative orders, reducing the credibility of preplay communication. Random market opening deters manipulation, but also hinders communication by making it costly. Gains from trade are maximized when preopening orders are binding. This enables some traders to place early limit orders, attracting further liquidity. Data, as supplemental material, are available at http://dx.doi.org/10.1287/mnsc.2013.1787. Keywords: cheap talk; experimental markets; equilibrium discovery; preopening period; preplay communication History: Received October 10, 2011; accepted May 22, 2013, by Wei Xiong, finance. Published online in Articles in Advance October 23, 2013.
1. Introduction At the opening of the market, there is large uncertainty about supply, demand, and valuations. Market openings can, therefore, be plagued by informational problems and coordination failures. Abstracting [...]