This paper presents a simple general equilibrium model of asset pricing in which profitable informed trading can occur without any "noise" added to the model. It shows that models of profitable informed trading must restrict the portfolio choices of uninformed traders: in particular, they cannot buy the market portfolio. In this model, profitable informed trading lowers the welfare of all agents when compared across steady states.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
4315.
Length: Date of creation: Apr 1993 Date of revision: Publication status: published as JET, Vol. 67, no. 2 (1995): 327-369. Handle: RePEc:nbr:nberwo:4315
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Find related papers by JEL classification: G12 - Financial Economics - - General Financial Markets - - - Asset Pricing
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James Dow & Gary Gorton, 2006.
"Noise Traders,"
NBER Working Papers
12256, National Bureau of Economic Research, Inc.
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