In this thesis, I explore various aspects of market liquidity and analyze its effect on asset prices. First, in a model of a limit order market I explain how to define liquidity and derive a price impact function. Second, I show how agents who have price impact generate a liquidity component in...

At the time of this writing, the NYSE had just completed its historic merger with Archipelago, LLC, while changing its ownership structure to a public company. The conditions leading up to this transformation are descriptive of the overall changes in "exchange structures" and the infrastructure...

Along with the increasing computing power, growing availability of various data streams, introduction of the electronic exchanges, decreasing trading costs and heating-up competition in financial investment industry, quantitative trading strategies or quantitative trading rules have been...

In Chapter 1, I investigate trading volume before scheduled and unscheduled corporate announcements to explore how traders respond to private information. I show that cumulative trading volume decreases by more than 15% prior to scheduled announcements. The decline in trading volume is largest...

Ticks, the second-to-second trades and quotes of a market, might be considered the atoms of finance. They represent the basic, defining transactions that represent an asset in the market. Almost all financial concepts, such as returns or risk, are essentially abstractions from tick data. Like...

(cont.) that threaten to disappear cause decision makers to invest more effort and money in order to keep these options open, even when the options themselves seem to be of little interest. The last experiment provides initial evidence that the mechanism underlying the tendency to keep doors...

This thesis consists of three essays on asset pricing. Chapter 1 presents an equilibrium model to study the convergence trading of large hedge funds in segmented markets. The model provides an alternative explanation for the anomaly of a price gap between two fundamentally identical securities....

The long-run effect of banner advertisements is among the most complex topic in the internet world. Media spending on online marketing has grown from $3 billion in 1999 to $9 billion in 2004. Forecasts (Jupiter Research 2005) expect this growth to double in the next five years. The proportion of...