¹ Istanbul Kultur University, ² Istanbul Bilgi University, ³ BELIS (Bilgi Economics Lab of Istanbul)

¹ Department of Economics, Econometrics & Finance; Faculty of Economics and Business; The University of Groningen, ² Social Science and Statistics Unit, Cocoa Research Institute of Ghana, ³ Department of Economics, Faculty of Economics and Business Administration, Ghent University, ⁴ Department of Finance, University of Ghana Business School, University of Ghana

¹ University of Latvia, ² Humboldt University of Berlin

¹ Management and economics Department, The Open University of Israel, ² The Department of Economics and Business Administration, Ariel University, Israel