This paper studies the price discovery dynamics in an order-driven market. Based on the transaction data on individual stocks, the paper focuses on the study of the monthly evolution of normalized volatility ratios on Euronext Paris for the CAC40 stocks before and after the implementation of the...

Regulators, exchanges, and politicians are considering reining in maker-taker pricing, which is used as a competitive tool by trading venues to acquire order flow. Examining the 2013 reduction in trading fees operated by BATS on its European venues, we document significant effects on market...

In July 2002, FINRA began mandatory dissemination of price and volume information for corporate bond trades. This paper, using recently released data, measures transparency's effect on trading activity and costs for the entire corporate bond market. Even though trading costs decrease...

We study the consequences of high-frequency trading (HFT) — and potential policy responses — via the tradeoff between liquidity and information production. Faster speeds facilitate HFT with consequences for this tradeoff: information production diminishes because informed traders have less...

I investigate the fragmentation under high frequency trading (HFT) popularity. I make a toy model of security exchange market competition. With the friction like the Bertrand competition with differentiated goods, the effect of the number of venues on bid ask spread depends on the business...

We examine how abnormal dark market share changes at earnings announcements and find a statistically and economically significant increase in abnormal dark market share in the weeks prior to, during, and following the earnings announcement. The increase in dark market share is larger for firms...

This paper provides micro-econometric evidence on the relevance of non-market interaction for the timing of initial public offerings (IPOs) in the French and German primary equity markets. The surge of IPO volume in the late 1990s appears to be consistent with rational expectations, not with...

This paper uses proprietary data to evaluate the efficacy of single-stock circuit breakers on the London Stock Exchange during July and August 2011. We exploit exogenous variation in the length of the uncrossing periods that follow a trading suspension to estimate the effect of auction length on...

The effectiveness of any sanction depends on the costs of avoiding its restrictions. We examine whether bearish option strategies were substitutes for short sales during the September 2008 short-sale ban. We find a significant diminution in option volumes and a significant increase in option...

In this paper, we investigate short sale constraints' impact on the incidence of extreme stock market movements. The latter can be used to proxy for the likelihood of tail events like crashes and bubbles in a market and, thus, is a crucial measure of stock market stability. Since crashes and...