Graduate School of Business
655 Knight Way
Stanford, CA 94305
NBER Working Papers and Publications
|September 2014||Strategic Trading in Informationally Complex Environments|
with Nicolas S. Lambert, Michael Ostrovsky: w20516
We study trading behavior and the properties of prices in informationally complex markets. Our model is based on the single-period version of the linear-normal framework of Kyle (1985). We allow for essentially arbitrary correlations among the random variables involved in the model: the value of the traded asset, the signals of strategic traders and competitive market makers, and the demand from liquidity traders. We show that there always exists a unique linear equilibrium, characterize it analytically, and illustrate its properties in a series of examples. We then use this characterization to study the informational efficiency of prices as the number of strategic traders becomes large. If liquidity demand is positively correlated (or uncorrelated) with the asset value, then prices in lar...