This article examines U.S. Treasury securities market functioning from the global financial crisis (GFC) through the Covid-19 pandemic given the ensuing market developments and associated policy responses. We describe the factors that have affected intermediaries, including regulatory changes,...

We consider the infinite-horizon optimal portfolio liquidation problem for a von Neumann-Morgenstern investor in the liquidity model of Almgren (2003). Using a stochastic control approach, we characterize the value function and the optimal strategy as classical solutions of nonlinear parabolic...

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...

We consider the finite-time optimal portfolio liquidation problem for a von Neumann-Morgenstern investor with constant absolute risk aversion (CARA). As underlying market impact model, we use the continuous-time liquidity model of Almgren and Chriss (2000). We show that the expected utility of...

Post-crisis bank regulations raised market-making costs for bank-affiliated dealers. We show that this can, somewhat surprisingly, improve overall investor welfare and reduce average transaction costs despite the increased cost of immediacy. Bank dealers in OTC markets optimize between two...

We consider a model in which dealers intermediate trades between clients and provide immediacy, or, market liquidity. Dealers can exert unobservable effort to improve the chance of intermediating profitably. This moral-hazard friction impairs dealers' ability to raise external finance and hence...

This paper examines dealer inventory capacity, or liquidity supply, as a driver of liquidity and expected returns in the corporate bond market. We identify shocks to aggregate liquidity supply using data on corporate bond yields and dealer positions. Liquidity supply shocks lead to persistent...

This paper provides an innovative theoretical model and empirical evidence for how the illiquidity of corporate bonds, as trading noise, dampens firm-specific information incorporated into bond prices. We find a negative relation between bond illiquidity and synchronicity, and this empirical...

We provide the first direct analysis of how dealers' funding liquidity affects their liquidity provision in securities markets. Dealers' repo trading terms, including both haircuts and repo spreads, and their ability to finance their bond inventories through repos affect their bid-ask spreads...

This paper measures the time-varying provision of liquidity by buy-side customers (e.g., mutual funds and pension funds), relative to bond dealers, in corporate bond markets using a structural vector autoregression (SVAR) model. As indicated by my simple theory model, shocks to the relative...