We consider Kyle's market order model of insider trading with multiple informed traders and show: if a linear equilibrium exists for two different numbers of informed traders, asset payoff and noise trading are independent and have finite second moments, then these random variables are normally...

We establish existence and uniqueness of equilibrium in a generalised one-period Kyle (1985) model where insider trades can be subject to a size-dependent penalty. The result is obtained by considering uniform noise and holds for virtually any penalty function. Uniqueness is among all...

Two activists with correlated private positions in a firm's stock, trade sequentially before simultaneously exerting effort that determines the firm's value. We document the existence of a novel linear equilibrium in which an activist's trades have positive sensitivity to her block size, but...

We study price efficiency and trading behavior in laboratory limit order markets with asymmetrically informed traders. Markets differ in the number of insiders present and in the subset of traders who receive information about the number of insiders present. We observe that price efficiency (i)...

I show that public companies disproportionately disclose positive news on days when corporate executives sell shares under predetermined Rule 10b5-1 plans. I find that the likelihood, share volume and dollar volume of insider sales under 10b5-1 plans are higher when good news is disclosed, and...

This paper shows that real decisions depend not only on the total amount of information in prices, but the source of this information -- a manager learns from prices when they contain information not possessed by him. We use the staggered enforcement of insider trading laws across 27 countries...

The present study contributes to the ongoing debate on possible costs and benefits of insider trading. We present a novel call auction model with insider information. Our model predicts that more insider information improves informational efficiency of prices, but this comes at the expense of...

This note provides the details of the estimation procedure in Br¨unner (2019). In Section 2 we derive the posterior distribution. Section 3 describes the MCMC algorithm used to obtain draws from the posterior distribution and in Section 4 we present the method for our model check. We conclude...

This paper finds that the majority of stock price movements remain unexplained after controlling for both public and private information. This suggests that economists' inability to explain asset price movements is the result of either noise or naive asset pricing models.

We study the use of trading strategies and their profitability in experimental asset markets with asymmetrically informed traders. We find that insiders make most of their profits from trades which are initiated by their limit orders -- especially at the beginning of a period and when the change...