Roman Matkovskyy ESC Rennes School of Business, France   2 rue Robert d'Arbrissel CS 76522 Rennes, 35065 France   roman.matkovskyy@esc-rennes.com         Primary Research Focus: Heterogeneity, interdependence, productivity, safety, risks, growth, development   JEL Areas: C : Mathematical and Quantitative Methods E : Macroeconomics and Monetary Economics