Konrad Raczkowski is Professor of Management and specializes in the unofficial economy, public finances and management in the economic system. He is Director of the Institute of Economics at the University of Social Sciences in Warsaw (Poland) and Head of the Department of Economic Security Management. Lukasz Sulkowski is Professor of Economics at the Jagiellonian University in Cracow (Poland), at Clark University (USA) and at the University of Social Sciences in ? ód ? (Poland).
He has published numerous books and articles on cognitive and methodological problems of management and marketing, on the management of family enterprises, on organizational culture and human capital. He participated in several international research projects funded by the EU, the National Science Centre, the Committee for Scientific Research and the Ministry of Science.