Comparative Economic Research, Volume 20, Number 1, 2017 10.1515/cer-2017-0001 ANDRZEJ CIEŚLIK * , IRYNA GAUGER ** JAN JAKUB MICHALEK *** Determinants Of Productivity Of Ukrainian Firms Abstract This paper examines the determinants of total factor productivity (TFP) of Ukrainian firms in manufacturing and services, using micro-level data for the years 2005 and 2013. We first estimate regressions for the pooled dataset for the manufacturing and service sectors jointly, and then separately for each sector. Our empirical results show a positive link between the total factor productivity, intangible assets, capital intensity, firm size, competition in the industry, ownership status, and firm internationalization (exports and imports). In addition, we find that the determinants of productivity differ among the sectors and years of our sample. Keywords: productivity, firms, Ukraine 1. Introduction Following the collapse of the Soviet Union in 1991, Ukraine emerged as an independent country and followed its own path of economic transition from a centrally-planned to a market economy. This way was different from the path followed by Central and Eastern European (CEE) countries, which radically * University of Warsaw, Faculty of Economic Sciences, e-mail: cieslik@wne.uw.edu.pl ** Hamburg School of Business Administration, Germany, e-mail: irynagauger@gmail.com *** University of Warsaw, Faculty of Economic Sciences, e-mail: michalek@wne.uw.edu.pl