Algorithmic trading has sharply increased over the past decade. Equity market liquidity has improved as well. Are the two trends related? For a recent five-year panel of New York Stock Exchange (NYSE) stocks, we use a normalized measure of electronic message traffic (order submissions,...

We study price pressures in stock prices-price deviations from fundamental value due to a risk-averse intermediary supplying liquidity to asynchronously arriving investors. Empirically, twelve years of daily New York Stock Exchange intermediary data reveal economically large price pressures. A...

The current National Football League overtime rule favors the team starting on offense. Auctioning off or dividing-and-choosing the starting possession can potentially restore ex post fairness. We find auctions to provide a better outcome when teams have asymmetric information.

This paper studies whether high-frequency trading (HFT) increases the execution costs of institutional investors. We use technology upgrades that lower the latency of the London Stock Exchange to obtain variation in the level of HFT over time. Following upgrades, the level of HFT increases....

We examine the impact on stock prices of a major upgrade to the New York Stock Exchange's trading environment. The upgrade improved information dissemination on the trading floor and reduced the latency in reporting trades and quotes. The portion of the upgrade that reduced latency for...