We present CoMargin, a new methodology to estimate collateral requirements for central counterparties (CCPs) in derivatives markets. CoMargin depends on both the tail risk of a given market participant and its interdependence with other participants. Our approach internalizes market...

In credit markets, screening algorithms discriminate between good-type and bad-type borrowers. This is their raison d’être. However, by doing so, they also often discriminate between individuals sharing a protected attribute (e.g. gender, age, race) and the rest of the population. In this...

Reproducibility is key for building trust in research, yet it is not widespread in economics. We show how external certification can improve reproducibility in economics research. Such certification can be conducted by a trusted third party or agency, which formally tests whether a given result...

Using high-frequency, granular panel data on short-term debt securities issued in Europe, we study the existence, empirical boundaries, and fragility of private assets' safety. We show that only securities with the shortest maturities, issued by banks (certificates of deposit, or CDs), benefit...

We empirically explore the fragility of wholesale funding of banks, using trans-action level data on short-term, unsecured certificates of deposits in the European market. We do not observe any market-wide freeze during the 2008-2014 period. Yet, many banks suddenly experience funding dry-ups....