This paper investigates the effects of transaction taxes on depth and bid-ask spread under asymmetric information. The paper uses a static model where a monopolistic market maker faces liquidity and informed traders. Introducing transaction taxes could, surprisingly, lead to increase in depth....

We propose and estimate a model of endogenous informed trading that is a hybrid of the PIN and Kyle models. When an informed trader trades optimally, both returns and order flows are needed to identify information asymmetry parameters. Empirical relationships between parameter estimates and...

This study tests whether disclosing a trader's identity dampens or stimulates subsequent trading volume based on the trader's reputation for being informed. While a reputation for being informed makes markets less liquid, thus inhibiting subsequent trade ("illiquidity effect"), the information...

Sell-side analysts change their stock recommendations when their valuations differ from the market's. These valuation differences can arise from either differences in earnings estimates or the non-earnings components of valuation methodologies. We find that recommendation changes motivated by...

Using over 5000 equity and option trades unequivocally based on nonpublic information about firm fundamentals, we find that commonly used asymmetric information proxies (AIPs) display abnormal values on days with informed trading. Volatility and trading volume are abnormally high, whereas...

The trading of private securities has recently gained greater visibility and importance with the advent of organized, private security exchanges. This paper uses data on IPO firms that list on the SharesPost private securities exchange platform to examine the potential benefits of a listing....

Despite the significant attention that market manipulation has received in recent years many aspects of it are poorly understood. This article identifies from the theoretical and empirical literature what we do and do not know about market manipulation, and suggests directions for future...

We model a two-tiered market structure in which an investor can trade an asset on a trading platform with a set of dealers who in turn have access to an interdealer market. The investor's order is informative about the asset's payoff and dealers who were contacted by the investor use this...