JARMOŁOWICZ, Wacław and KUŹMAR, Sławomir. INSTITUTIONAL DETERMINANTS OF LABOR PRODUCTIVITY IN THE SELECTED REGIONS OF THE EUROPEAN UNION. Ekonomia i Prawo. Economics and Law. Online. 31 December 2015. Vol. 14, no. 4, pp. 459-478. [Accessed 4 July 2025]. DOI 10.12775/EiP.2015.030.