This study develops a model to examine how companies' investor relations can impact the dissemination of information and how the dissemination of information affects the time-series behavior of bid-ask spreads. In our model, investors become aware of the information release either directly from...

This paper shows that persistent mispricing is consistent with a market that includes ambiguity-averse investors. In particular, ambiguity-averse investors may prefer to trade based on aggregate signals that reduce ambiguity at the cost of a loss in information. Equilibrium prices may therefore...