We use a laboratory market to investigate how the ability to hide orders affects traders' strategies and market outcomes in a limit order book environment. We find that order strategies are greatly affected by allowing hidden liquidity, with traders substituting non-displayed for displayed...

We use a laboratory market to investigate how the ability to hide orders affects traders' strategies and market outcomes. We examine three market structures: Visible markets in which all orders must be displayed, Iceberg markets in which a minimum size must be displayed, and Hidden markets in...

Order flow is toxic when it adversely selects market makers, who may be unaware they are providing liquidity at a loss. We present a new procedure to estimate flow toxicity based on volume imbalance and trade intensity (the VPIN toxicity metric). VPIN is updated in volume-time, making it...

We examine portfolio trading and its impact on corporate bond liquidity. Our theoretical framework identifies how portfolio trades provide dealers with benefits through a diversification channel and with costs through a balance sheet channel. We then test empirically multiple hypotheses on the...