I provide the first systematic analysis of collateral choices in one of the main short-term funding markets, the repurchase agreement (repo) market. In repos, long-term bonds serve as collateral connecting short-term and long-term funding markets. In general collateral repos, banks can choose...

We analyze the international dimension of repo markets using novel euro area regulatory microdata. Our findings highlight the deep integration of funding markets across the Atlantic and the US dollar's outsized role. Our paper documents five key facts: (1) US dollar repos by euro area entities...

This paper studies how Treasury market dynamics depend on adjustments to the central bank balance sheet. We introduce a dynamic model of Treasury bonds with traditional and shadow banks. In the model, both Treasury and repo market disruptions arise as a joint consequence of three frictions: (i)...

The reuse of collateral can support the efficient allocation of safe assets in the financial system. Exploiting a novel dataset, we show that banks substantially increase their reuse of sovereign bonds in response to scarcity induced by Eurosystem asset purchases. While repo rates react little...

The Eurosystem's asset purchase programmes reduced the free float of German Bunds. Market participants feared impaired market functioning in the Bund market and monetary policymakers unintended consequences for monetary policy transmission. We study the intended and unintended consequences of...