Stock Price Manipulation, Market Microstructure and Asymmetric Information
Franklin Allen and
Gary Gorton
No 3862, NBER Working Papers from National Bureau of Economic Research, Inc
Abstract:
In recent years, there has been a large literature on how stock exchange specialists set prices when there are investors who know more about the stock than they do. An important assumption in this literature is that there are *liquidity traders* who are equally likely to buy or sell for exogenous reasons. It is plausible that some buyers have cash needs and are forced to sell their stock. However, buyers will usually be able to choose the time at which they trade. It will be optimal for them to minimize the probability of trading with informed investors by choosing an appropriate time to trade and clustering at that time. This asymmetry means that when liquidity buyers are not clustering, purchases are more likely to be by an informed trader than sales so the price movement resulting from a purchase is larger than for a sale. As a result, profitable manipulation by uninformed investors may occur. A model where the specialist takes account of the possibility of manipulation in equilibrium is presented.
Date: 1991-10
Note: AP
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Citations: View citations in EconPapers (7)
Published as European Economic Review, Vol. 36, nos. 2/3 (April 1992): 624-630.
Published as Franklin Allen, Stephen Morris and Andrew Postlewaite, "Finite Bubbles with Short Sale Constraints and Asymmetric Information," Journal of Economic Theory, Vol. 61, no. 2 (December 1993): 206-229.
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Journal Article: Stock price manipulation, market microstructure and asymmetric information (1992) 
Working Paper: Stock Price Manipulation, Market Microstructure and Asymetric Information (1991)
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