Stephan Wiehler is a member of the Chief Risk Officer Division and Head of Rating Models and Stress Testing. In his role, he is responsible for the global coverage of AIRB rating models and the credit loss stress testing of Credit Suisse. After his studies of Economics, Stephan spent 4 years in Consulting e.g. for the Austrian Federal Ministry of Economy. Stephan started his career in the risk modelling domain in 2001 and joined Credit Suisse in 2007. He was involved in development projects covering AIRB, Economic Capital and Stress Testing and held various functions in the CRO division since then. Stephan Wiehler holds a Ph.D. in Economics from the University of St. Gallen.