ISSN 1791-3144 University of Macedonia Department of Economics Discussion Paper Series Does output predict unemployment? A look at Okun’s law in Greece Costas Karfakis, Constanitnos Katrakilidis and Eftychia Tsanana Discussion Paper No. 1/2013 Department of Economics, University of Macedonia, 156 Egnatia str, 540 06 Thessaloniki, Greece, Fax: + 30 (0) 2310 891292 http://www.uom.gr/index.php?newlang=eng&tmima=3&categorymenu=2