This paper documents the significant role of ECNs in forming the inside market in NASDAQ securities. We argue that the ECNs need to be exposed to market orders through the SOES system.

We combine self-collected historical data from 1867 to 1907 with CRSP data from 1926 to 2012, to examine the risk and return over the past 140 years of one of the most popular mechanical trading strategies - momentum. We find that momentum has earned abnormally high risk-adjusted returns - a...

I study the effect of public information disclosure in a market setting where private information acquisition exhibits strategic complementarity. To overcome the issue of equilibrium multiplicity, I introduce heterogeneous information cost and imperfect information on the cost distribution. The...

This paper presents a new method to detect informed trading activities in the options markets.An option trade is identified as informed when it is characterized by an unusual largeincrement in open interest and volume, induces large gains, and is not hedged in the stock market.For the period...

This paper tests two competing hypotheses about the influence of financial institutions as large shareholders on the performance of their industrial portfolio firms: the superior monitoring hypothesis versus the rent extraction hypothesis. The methodology of this study exploits the abolishment...

This paper develops a real options framework to analyze the behavior of stock returns in mergers and acquisitions. In this framework, the timing and terms of takeovers are endogenous and result from value-maximizing decisions. The implications of the model for abnormal announcement returns are...

This paper studies the short- and long-run announcement effects of declaring compliance with the German Corporate Governance Code (the Code). We examine a unique, hand-collected data set of 317 German listed firms from 2002-2005. First, we present evidence from an analysis of firms compliance...

In this paper we examine the theoretical conditions under which a firm will have incentives to optimallychoose investment projects of duration that deviates from its stated horizon objective. Our approachconsiders a context in which investment horizon is subject to randomness and its length is...

This paper investigates the wealth effects of private equity (PE) investor purchases of shares in German quoted companies. It is the first study to analyze these effects for the German market which is particularly interesting due to its distinct characteristics with regard to the ownership...

We develop a dynamic model of corporate investment and financing decisions in whichcorporate insiders have superior information about the firm's growth prospects. We show thatrms with positive private information can credibly signal their type to outside investors usingthe timing of corporate...