Insider Trading in Continuous Time
研究了连续时间版本的Kyle(1985)资产定价模型，证明了在特定类别中存在唯一的均衡定价规则，并给出了资产价值一般分布下的闭式解。
The continuous-time version of Kyle's (1985) model of asset pricing with asymmetric information is studied. It is shown that there is a unique equilibrium pricing rule within a certain class. This pricing rule is obtained in closed form for general distributions of the asset value. A particular example is a lognormal distribution, for which the equilibrium price process is a geometric Brownian motion. General trading strategies are allowed. In equilibrium, the informed agent, who is risk neutral, has many optima, but he does not correlate his trades locally with the noise trades nor does he submit discrete orders.