Article

What Do Unions Do to Productivity? A Meta‐Analysis

Industrial Relations A Journal of Economy and Society (Impact Factor: 1.48). 09/2003; 42(4):650 - 691. DOI: 10.1111/1468-232X.00310

ABSTRACT The impact of unions on productivity is explored using meta-analysis and meta-regression analysis. It is shown that most of the variation in published results is due to specification differences between studies. After controlling for differences between studies, a negative association between unions and productivity is established for the United Kingdom, whereas a positive association is established for the United States in general and for U.S. manufacturing.

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