We find that central bank reserves injected by QE crowd out bank lending. We estimate a structural model with cross-sectional instrumental variables for deposit and loan demand. Our results are determined by the elasticity of loan demand and the impact of reserve holdings on the cost of...

Exchange-traded funds (ETFs) are typically viewed as passive index trackers. In contrast, we show that corporate bond ETFs actively manage their portfolios, trading off index tracking against liquidity transformation. In our model, ETFs optimally choose creation and redemption baskets that...

Liquidity provision is often attributed to debt-issuing intermediaries like banks. We develop a unified theoretical framework and empirically show that mutual funds issuing demandable equity also provide an economically significant amount of liquidity by insuring against idiosyncratic liquidity...

Stablecoins are cryptoassets which are designed to be pegged to the dollar, but are backed by imperfectly liquid USD assets. We show that stablecoins feature concentrated arbitrage: the largest issuer, Tether, only allows 6 agents in an average month to redeem stablecoins for cash. We argue that...