Institution: | 1. Department of Economics, Society, Politics, University of Urbino, via A. Saffi 42, Urbino 61029, Italy;2. Institute of Mathematics, NASU, 3 Tereshchenkivska st., Kyiv 01601, Ukraine;3. Kyiv School of Economics, 92–94 Dmytrievska st., Kyiv 01135, Ukraine;1. Department of Economic Sciences, Indian Institute of Technology, Kanpur, India;2. Department of Economics, Barnard College, Columbia University and the Santa Fe Institute, United States |