Since the European debt crisis economists and politicians discuss intensively the sovereign-bank nexus. The high activity in sovereign bond issuance required to mitigate the burden of the Covid19 crisis will rather intensify this debate than calm it down. Surprisingly, however, we still have...

We model asset opacity and deposit rate choices of banks who imperfectly compete for uninsured deposits, are subject to runs, and face a threat of entry. Higher competition increases deposit rates and bank fragility, resulting in an intermediate socially optimal level of bank competition. We...

The growing popularity of fintechs has led the Financial Stability Board (FSB) to publish considerations about the effects of this emerging industry on stability and efficiency in the financial sector. Against this background, this paper compares the effects of competition and collaboration...

Stylized data shows a structural break in the integration of lending markets which coincides with the global financial crisis. During and after the crisis, banks actively reduced their share of foreign relative to domestic banking activity and lending in particular. This increase in lending...

We show that nonbanks (funds, shadow banks, fintech) reduce the effectiveness of tighter monetary policy on credit supply and the resulting real effects, and increase risk-taking. For identification, we exploit exhaustive US loan-level data since 1990s and Gertler-Karadi monetary policy shocks....

When banks are faced with a funding shortage in money market wholesale funding, they partly substitute by tapping other wholesale funding sources. Using auction-level data on large corporate deposits, we trace these substitution effects and their implications, which go beyond the balance sheets...