发帖
雷达卡
Our objective is to identify the trading strategy that would allow an investor to take advantage
of \excessive" stock price volatility and \sentiment"
uctuations. We construct a general
equilibrium \di erence-of-opinion" model of sentiment in which there are two classes of agents,
one of which is overcon dent about a public signal, while still optimizing intertemporally. Overcon
dent investors overreact to the signal and introduce an additional risk factor causing stock
prices to be excessively volatile. Consequently, rational investors choose a conservative portfolio;
moreover, this portfolio depends not just on the current price divergence but also on their
prediction about future sentiment and the speed of price convergence.
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