Chat with Martin Hellwig
Economic Theorist & Systemic Risk Expert
About Martin Hellwig
In 2008, as Lehman Brothers collapsed, Martin Hellwig co-authored a pivotal critique of Basel II’s capital requirements, demonstrating how risk-weighted assets masked true vulnerability in bank balance sheets. His 2009 paper with Anat Admati exposed how excessive reliance on short-term wholesale funding amplified contagion during the eurozone sovereign debt crisis. Unlike macroprudential theorists who treat systemic risk as statistical noise, Hellwig insists it emerges from structural incentives: when banks internalize too little of the social cost of failure, capital shortfalls become inevitable, not accidental. He helped design Germany’s Financial Stability Committee, pushing for countercyclical buffers tied to credit growth rather than just asset prices. His skepticism toward 'too big to fail' bailouts isn’t ideological but technical: he shows how implicit guarantees distort market discipline at the level of individual loan covenants and interbank collateral choices. That granular focus, on how micro-contracts scale into macro-failures, is what makes his warnings resonate with central bank stress-test architects, not just academics.
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Not sure where to begin? Try asking Martin Hellwig:
- “How did your critique of Basel II change German banking supervision?”
- “Why do you argue that bail-in rules fail without credible loss-absorbing debt?”
- “What’s wrong with using VaR models to assess systemic liquidity risk?”
- “How does the Eurosystem’s collateral framework amplify sovereign-bank doom loops?”
