Do consumers and merchants use the most efficient payment instruments? I examine how inter-change fees, which are fees paid from merchants' banks to consumers' banks when card transactions take place, influence the choice between cash and payment cards. I show that when consumers do not pay...

This paper studies optimal second-best corrective regulation, when some agents/activities cannot be perfectly regulated. We show that policy elasticities and Pigouvian wedges are sufficient statistics to characterize the marginal welfare impact of regulatory policies in a large class of...

From the onset of the 2007-2009 crisis, the Federal Reserve and the European Central Bank have aggressively lowered interest rates. Both sets of changes are at odds with an anti-inflationary stance of monetary policy; indeed, as the crisis began in August 2007 inflation expectations were high...

This paper provides the first empirical evidence that bank regulation is associated with cross-border spillover effects through the lending activities of large multinational banks. We analyze business lending by 155 banks to 9613 firms in 1976 different localities across 16 countries. We find...

I study rollover risk in the wholesale funding market when intermediaries can hold liquidity ex-ante and are subject to fire sales ex-post. I demonstrate that precautionary liquidity restores multiple equilibria in a global rollover game. An intermediate liquidity level supports both the usual...

We develop a dynamic structural model of bank behaviour that provides a microeconomic foundation for bank capital and liquidity structures and analyses the effects of changes in regulatory capital and liquidity requirements as well as their interaction. Our findings suggest that adjustments in...

The market turmoil in March 2020 highlighted key vulnerabilities in the EU money market fund (MMF) sector. This paper assesses the effectiveness of the EU's regulatory framework from a financial stability perspective, based on a panel analysis of EU MMFs at a daily frequency. First, we find that...

This lecture considers the case for consumer financial regulation in an environment where many households lack the knowledge to manage their financial affairs effectively. The lecture argues that financial ignorance is pervasive and unsurprising given the complexity of modern financial products,...

I develop a model of money market funds (MMFs) to study the ability of sponsor support to provide stability to the industry. I find that strategic complementarities in the sponsors' support decisions can make MMFs vulnerable to runs different from the canonical bank-runs: it may lead to runs of...