Claudia Buch, vice president of Germany’s Bundesbank, will become the top banking supervisor in the eurozone on January 1. She will head up the Single Supervisory Mechanism at the European Central Bank (ECB). The framework was set up in 2014 after a review of the 2008 banking and financial crisis. Buch will directly supervise 109 banks in the eurozone, which account for 82% of the banking market in the single currency area. The aim is to ensure greater stability in the financial system with standardized rules for the largest financial institutions in the eurozone. She wants to help ensure that…