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...

This study compares the components of the bid-ask spread estimated from quotes that reflect the trading interest of specialists with those estimated from limit-order quotes and all available quotes for a sample of NYSE stocks. The results show that the adverse selection component of the spread...

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...

This study shows that limit-order traders play a significant role in the market-making process. We find that the majority of bid-ask quotes on the NYSE reflects the trading interest of limit-order traders. We find that specialists tend to quote more actively for low-volume stocks and during...

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...

We examine the role of limit-order traders and specialists in the market-making process. We find that a large portion of posted bid-ask quotes originates from the limit-order book without direct participation by specialists, and that competition between traders and specialists has a significant...

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...