Information Diversity and Complementarities in Trading and Informationn Acquisition

摘要

We analyze a model in which different traders are informed of different fundamentals that affect the security value. We identify a source for strategic complementarities in trading and information acquisition: aggressive trading on information about one fundamental reduces uncertainty in trading on information about the other fundamental, encouraging more trading and information acquisition on that fundamental. This tends to amplify the effect of exogenous changes in the underlying information e