6Alesina, Alberto, Rafael Di Tella, and Robert MacCulloch, 2004, “Inequality and Happiness: Are Europeans and American Different?” Journal of Public Economics, Vol, 88, pp, 2009-2042.
7Blanchflower, David G. and Andrew J. Oswald, 1998, “What Makes an Entrepreneur?”,Journal of Labor Economics, Vol. 16, pp.26-60.
8Clark, Andrew E. and Andrew J. Oswald, 1994, “Unhappiness and Unemployment”, Economic Journal, Vol.104, pp.648-659.
9Di Tella, Rafael, Robert J. MacCulloch, and Andrew J. Oswald, 2003, “The Macroeconomics of Happiness”, The Review of Economics and Statistics, Vol.85, pp.809-827.
10Frey, Brunos and Alois Stutzer, 2000, “Happiness, Economy and Institutions” ,Economic Journal, Vol.110, pp.918-938.