He was a vising post-doc at the University of Madison – Wisconsin (1999); a visiting scholar at the Department of Economics – University of Technology, Sidney (AUS) where he collaborated with Carl Chiarella (2001), and a visiting scholar at the Brookings Institute, Washington DC (USA) where he collaborated with Robert Axtell (2006). His main research interests are business cycles, industrial dynamics, financial fragility, and mathematical finance. He published in international journals such as "Journal of Economic Behavior and Organization," "Ecological Economics," "Macroeconomic Dynamics," "Journal of Economic Dynamics and Control," "Economics Letters," and "Information Sciences."