"Two recent studies from the United States and the United Kingdom have added to the growing body of empirical evidence that shows a strong correlation between declining union density and rising income inequality."
"A new research paper prepared by acclaimed U.K. authors and social epidemiologists, Richard Wilkinson and Kate Pickett, shows how the weakening of the labour movement during the last quarter of the 20th century has had a significant impact on the ability of working people to influence their standard of living and quality of life."
"The research paper, entitled The importance of the labour movement in tackling inequality, was prepared for the U.K.-based Centre for Labour and Social Studies and was drawn from a more extensive report by the authors entitled, The World We Need, written for the International Labour Organization (ILO).”
"This paper argues that ‘we must now recreate a movement with the political and social influence that enabled the former labour movement to achieve the major reductions in inequality during the middle decades of the 20th century. A fairer and more sustainable future is possible.’"
"Meanwhile, a study [entitled Union Strength, Neoliberalism, and Inequality: Contingent Political Analyses of U.S. Income Differences Since 1950] by Dr. David Jacobs, Professor of Sociology, and Lindsey Myers, a doctoral student in sociology, both from Ohio State University, has concluded that a major cause of growing income inequality in the United States has been ‘the politically induced decline in the strength of unions.’”
"Their research shows that the role that union decline has played in growing income inequality may actually be larger than many of the favourite explanations offered by economists, such as the education gap in the United States. ‘Among their contributions to income equality, unions reduce pay differences within companies and use their influence to lobby on behalf of the working and middle classes,’ the researchers say."
National Union of Public and General Employees, July 15, 2014: “New studies show strong correlation between declining union density and rising income inequality”
Centre for Labour and Social Studies, July 2014: “The importance of the labour movement in tackling inequality,” by Richard Wilkinson and Kate Pickett (16 pages, PDF)
ILO’s International Journal of Labour Research, Vol. 6, Issue 1, 2014: “The world we need,” by Richard Wilkinson and Kate Pickett [this article begins on page 19] ](160 pages, PDF)
American Sociological Review, June 9, 2014: “Union Strength, Neoliberalism, and Inequality: Contingent Political Analyses of U.S. Income Differences since 1950,” by David Jacobs and Lindsey Myers