Jozef Olenski is professor of information science at the Warsaw University and the advisor to the president of the National Bank of Poland. Formerly ia. director of the Research Institute of Official Statistics by the CSO of Poland (74-91), President of the National Statistical Office of Poland (92-95), chairman of the United Nations Statistical Commission (1994-1995). Research in economics of information and information systems for public sector. Member of the International Statistical Institute.