In this study we show that market uncertainty [measured by the Chicago Board Options Exchange Market Volatility Index (VIX)] exerts a large market-wide impact on liquidity, which gives rise to co-movements in individual asset liquidity. The effect of VIX on stock liquidity is greater than the...

In this study, we examine the effect of pre-trade transparency on market quality using data before and after the introduction of SuperMontage. Our results show that both bid-ask spreads and return volatility declined significantly after the implementation of SuperMontage. In addition,...

In this study we analyze the effect of tick size on information-based trading. Although prior studies provide extensive evidence on the effect of tick size on market quality measures such as spreads, depths, and return volatility, there is little evidence as to the effect of tick size on the...

We analyze data provided by NASDAQ to examine how quote aggressiveness affects dealer market share and whether the practice of internalization mitigates the impact of quote aggressiveness. Our empirical results show that although internalization does not reduce the impact of price aggressiveness...

We examine execution costs and quote clustering on the NYSE and NASDAQ using 517 matching pairs of stocks after decimalization. We find that the mean spread of NASDAQ stocks is greater than the mean spread of NYSE stocks when spreads are equally weighted across stocks and the difference is...

Despite the widely held belief that order preferencing affects market quality, no hard evidence exists on the extent and determinants of order preferencing and its impact on dealer competition and execution quality. This study shows that the bid-ask spread (dealer quote aggressiveness) is...

This paper examines liquidity and quote clustering on the NYSE and Nasdaq using data after the two market reforms - the 1997 order-handling rule and minimum tick size changes. We find that Nasdaq-listed stocks exhibit wider spreads and smaller depths than NYSE-listed stocks and stocks with...

This paper examines execution costs and quote clustering on the NYSE and Nasdaq using 517 matching pairs of stocks after decimalization. We find that the average quoted, effective, and realized spreads of Nasdaq-listed stocks are 18%, 29%, and 58% larger, respectively, than those of NYSE-listed...

In this paper, we determine whether each bid (ask) quote reflects the trading interest of the specialist, limit order traders, or both for a sample of NYSE stocks in 1991. We then compare Nasdaq spreads with NYSE spreads that reflect the trading interest of the specialist. Our empirical results...