Until recently he was also a Co-director of the African Centre for African Public Debt Management and Bond Markets (located in South Africa).
Hans has advised governments in Europe, US, LA, Asia and Africa on banking problems, government borrowing operations and public debt issues, pension finance and the development of bond markets. He is serving (or has served) on the advisory boards of several international organizations. He held advisory and executive positions including at the IMF, OECD, the Dutch Ministry of Finance, the International Court of the Environment Foundation and the European Union. He is a member of editorial boards of journals in finance and econometrics. He obtained his PhD on an econometric topic. He held academic positions as a full professor at Twente University and Tilburg University (both in The Netherlands); and SKKU Business School (in South Korea).
Hans has more than 20 years experience in chairing international meetings, acting as discussion leader and being a key note speaker on academic subjects, policy topics and general interest issues. His audiences have ranged from financial industry leaders, politicians, investors, policymakers, students to the general public. He has published numerous academic or policy articles on sovereign debt issues, econometric methodology, spatial economics, pension finance, aging populations, the influence of technology, the transformation process in formerly socialist countries, ethics and finance, risk management, and bond markets. His areas of expertise include: Financial Services Industry, Public Debt Management, Bond Market Development, Pension Finance, Risk Management.