 Between 1996 and 2000 he held the post of chief economist at the National Bank of Greece, where he restructured the Economic Analysis Division, created the Risk Management Division, the Assets-Liabilities Management Department, and the Investors Relations Department.He also played a critical role in the establishment of the Athens Derivatives Exchange, as an original member of its board of directors (1997–2000).In the subsequent years he joined Eurobank as its chief economist.