crashes. They actually consume liquidity when it is most needed, even if they are rewarded by the exchange to provide … crash. In their place, slow traders provide liquidity, taking advantage of the discounted price. We thus uncover a trade …-off between the greater liquidity and efficiency provided by designated market makers in normal times, and the disruptive …

fragmentation, the resulting implications for liquidity and price efficiency, and the role for public policy. Beyond the concerns … competition between trading venues. …

We examine the role of algorithmic traders (AT) in liquidity supply and demand in the 30 DAX stocks on the Deutsche … monitor market liquidity than human traders. AT consume liquidity when it is cheap, i.e., when the bid-ask quotes are narrow …, and supply liquidity when it is expensive. When spreads are narrow AT are less likely to submit new orders, less likely to …

This paper studies the impact of contracted market makers by investigating the liquidity provider scheme in Sweden. The … results show that the stocks become more liquid after the introduction of the contracted market makers. The liquidity … scheme and function as contracted market makers, whose trading behavior contribute to documented liquidity improvement. After …

costs curves and we find empirical evidences about the "pegging to the current mid-quote" behavior of the liquidity …

important aspect of the market microstructure – liquidity. Potentially, herding could simultaneously affect the liquidity of … 'commonality in liquidity' – a term which expresses the idea that the liquidity of individual stocks may have common determinants …. We find strong evidence of commonality in liquidity in what is the first study of this phenomenon since the ASX adopted …

of algorithmic trading on stock market liquidity and commonality in liquidity under different market conditions on the … Tokyo Stock Exchange. After controlling for endogeneity, we find algorithmic trading increases stock liquidity by narrowing … spreads and increasing market depth. Furthermore, algorithmic trading increases commonality in liquidity at both high and low …

of algorithmic trading on stock market liquidity and commonality in liquidity under different market conditions on the … Tokyo Stock Exchange. After controlling for endogeneity, we find algorithmic trading increases stock liquidity by narrowing … spreads and increasing market depth. Furthermore, algorithmic trading increases commonality in liquidity at both high and low …

We study empirically how competition among high-frequency traders (HFTs) affects their trading behavior and market …-frequency competition, and contains an exogenous event - a tick size reform - which we use to disentangle the effects of the rising share of … high-frequency trading in the market from the effects of high-frequency competition. We find that when HFTs compete, their …