He was invited to lecture and conduct research in a number of universities and research centers of the former Soviet Union and other countries, including the Novosibirsk and Saratov University, Graduate School of Economics in Berlin (at the time - GDR), the Institute of Advanced Soviet Studies at Columbia University (New York, USA), University of Toronto (Canada). Was a consultant for the Soviet Union and the Russian investment bank, "Morgan Stanley and Company" (New York and London, 1990-1994).