AIDT, T and Z. TZANNATOS. (2002). “Union and Collective Bargaining: Economic Effect in a Global Environment”. World Bank Publications. ATKINSON, A.B. (1997). “Bringing Income Distribution in From the Cold”. The Economic Journal, Vol. 107, No. 441 (Mar., 1997), pp. 297-321. BELMAN, D. (1992), “Unions, the Quality of Labor Relations, and Firm Performance”, en Mishel, L. y Voos, P. B. (eds.) Unions and Economic Competitiveness, ed., Armonk, N.Y.: Sharpe, 7-48. BLAU, F., and L. M. KAHN (1996). “International Differences in Male Wage Inequality: Institutions versus Market Forces”. Journal of Political Economy 104 (August 1996), pp. 791-837. CAI, L and J. WADDOUPS (2008). “Union Wage Effects in Australia: Evidence from Panel Data”. Discussion Paper No. 585, Centre for Economic Policy Research of The Australian National University. CARD, D (1992). “The Effect of Unions on the Distribution of Wages: Redistribution or Relabelling” NBER, Working Paper No. 4195. CHECCHI, D., VISSER, J., H., van de WERFHORST (2009): “Inequality and Union Membership: The Influence of Relative Earnings and Inequality Attitudes”.  British Journal of Industrial Relations. 48:1 March 2010, pp. 84–108. DAHL, C., le MAIRE, D. and J. MUNCH (2009). “Wage Dispersion and Descentralization of Wage Bargaining”. Discussion Papers No. 09-15, Departament of Economics University of Copenhagen. DELL’ARINGA and L. PAGANI (2005). “Collective Bargaining and Wage Dispersion”. British Journal of Industrial Relations, 2007. FITZENBERGER, B., K. KOHN, and A. C. LEMBCKE (2008). “Union Density and Varieties of Coverage: The Anatomy of UnionWage Effects in Germany”, IZA Discussion Paper No. 3356. FREEMAN, R. (2007), “Economic Development and Labor Market Institutions: where we now stand”, Centre for Economic Performance. FREEMAN, R. B. (1993). “How much has Deunionization contributed to the Rise of Male Earnings Inequality”. In Uneven Tides: Rising income inequality in America, edited by S.Danizger, and Peter Gottschalk. New York, Russell Sage Foundation, pp.133-163. HAYTER, S. (2002). “Negociación Colectiva e Igualdad de Ingresos en un Mundo con Integración”. Serie Educación Obrera, Depto. de Integración de las Políticas OIT. HAYTER, S., and B. WEINBERG (2011). “Mind Gap: Collective Bargaining and Wage Inequality”. In The Role of Collective Bargaining in the Global Economy: Negotiating for Social Justice. ILO, 2011. HIRSCH, D and E. SCHUMACHER (1998). “Unions, Wages, and Skills”. Journal of Human Resources 33 (january 1998), pp. 201-219.      KAHN, L.M. (1998). “Bargaining and the Interindustry Wage Structure: International Evidence”. Economica, New Series, Vol. 65, No. 260 (Nov., 1998), pp. 507-534. KAHN, L. M. (2000). “Wage Inequality, Collective Bargaining, and Relative Employment from 1985 to 1994: Evidence from Fifteen OECD Countries”. The Review of Economics and Statistics, Vol. 82, No. 4 (Nov., 2000), pp. 564-579. KAHN, L. M. (2003). “Collective Bargaining in the United States during the 1980’s: Rising Dispersion or Falling Minimum Wage” in Quartely journal of Economics, Vol. 114. KOSTZER, D., Perrot, B., y Villafañe, S. (2005). “Distribución del Ingreso, Pobreza y Crecimiento en Argentina” en Serie Trabajo, Ocupación y Empleo. Estudios Laborales 2005. Ministerio del Trabajo, Empleo y Seguridad Social. Argentina. LEWIS, H.G. (1965). “Unionism and Relative Wages in the United States” in  Studies in economics of the Economics Research Center of the University of Chicago Series, Chicago University Press, Chicago 1965, 308 pp. LUCIFORA, C. (1999). “Wage Inequalities and Low Pay: The Role of Labour Market Institutions”.  Fondazione Eni Enrico Mattei. METCALF, D. (2000). “Fighting for Equality” in Centrepiece, 5(2). NCTU (2009), “Collective Bargaining for Full Employment: The Norwegian Model in Brief”, Samfunnsnotat, N° 1/09, Norwegian Confederation of Trade Unions. PENCAVEL, J.H. (1977). “The Distribution and Efficiency Effects of trade Unions in Britain”, in British Journal of Industrial Relations, vol. XV, N°2. TRAJTEMBERG, D. (2008). “El Impacto de la Determinación Colectiva de los Salarios sobre la Dispersión Salarial” en Serie Trabajo, Ocupación y Empleo. Estudios Laborales 2008. Ministerio del Trabajo, Empleo y Seguridad Social, Argentina. TRAXLER, F. y BRANDL, B. (2009), “The Economic Effects of Collective Bargaining Coverage: A Cross-National Analysis”. GURN discussion paper; N° 10, Ginebra, Organización VENN, D (2009). “Legislation, collective bargaining and enforcement: Updating the OECD employment protection indicators" OECD Working Paper No. 89. Organisation for Economic Co-operation and Development. VISSER, J and D, CHECCHI (2009). “Inequality and the Labour Market: Unions” in The Oxford Handbook of Economic Inequality, Oxford.