What Do Unions Do to Productivity: A Meta-analysis

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


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.

Download full-text


Available from: Patrice Laroche, May 29, 2014
737 Reads
  • Source
    • "` A titre illustratif , le tableau 5 présente deux modèles de méta - régression ex - plicative pour illustrer cette approche qui consistè a incorporer des tests FAT ou MST dans des modèles de régression multiple . Il s ' agit ici de deux méta - régressions , réaliséesà partir des données de Doucouliagos et Laroche ( 2003 ) , dont l ' objectif est d ' examiner l ' influence de la nature des données utilisées 15 sur les résultats desétudes consacrées au lien syndicat / productivité . Les résultats du FAT - MRA présentés dans le tableau 5 indiquent que lesétudes menées sur des données américaines font ressortir plus souvent un lien positif entre la présence syndicale et la productivité du travail ( t = 2 , 08 , p < 0 , 05 ) . "
    [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this paper is to survey and illustrate selected statistical methods that can identify and correct publication bias. Publication bias has long been a major concern to researchers. In its more benign form, it is the result of selection for statistical significance. Researchers, reviewers and editors are predisposed to treat "statistically significant" results more favorably. Hence, there are more likely to be published. Such publication bias makes empirical effects seem larger than they are. With meta-analysis, statistical methods - such as funnel asymmetry and meta- significance tests - can be employed to identify and accommodate these biases.
    Revue de statistique appliquée 11/2013;
  • Source
    • "As an alternative measure that captures the value added by employees, we use EBITDA per Employee, which is the ratio of operating income before depreciation and amortization (data item 13) to the number of 18 Baldwin (1983) argues that firms keep inefficient plants to discourage unions from bargaining for higher wages. Doucouliagos and Laroche (2003) find a positive relation between unionization and productivity for U.S. firms. Chen, Kacperczyk, and Ortiz-Molina (2009a,b) argue that unions reduce the agency costs of financing. "
    [Show abstract] [Hide abstract]
    ABSTRACT: We analyze how changes in labor market conditions influence the effect of a firm’s debt policy on the productivity of its employees. We first establish that debt in the capital structure increases the productivity of the firm’s employees and then show that this positive productivity-leverage relation becomes stronger when outside employment opportunities for employees worsen. We also find that the passage of NAFTA, an exogenous shock to employment opportunities in certain industries, strengthened the positive productivity-leverage relation for firms in these industries. Our findings, thus, highlight the importance of one mechanism by which labor market conditions impact corporate financial policies.
    SSRN Electronic Journal 05/2012; DOI:10.2139/ssrn.1022067
  • Source
    • "The extensive empirical literature reports a wide range of positive and negative effects of unions on productivity where unionisation is typically measured by classifying plants as unionised or non-union. The meta-analysis of Doucouliagos and Laroche (2003) concludes a negative association for the UK and Japan but a positive association for the US. There are few published studies on unionisation and productivity in Australia. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Despite a large empirical literature, the conditions under which unions have different effects on productivity have not been determined. The Australian Workplace Relations Act 1996 (WRA) provides a natural experiment in which union bargaining power was decreased. We estimate productivity growth before and after the WRA. While the WRA did not increase productivity growth in union firms compared with non‐union firms, in industries with more extensive unionisation, productivity growth in union firms was greater post‐WRA compared with pre‐WRA growth for non‐union firms. This suggests unionisation tends to have greater effects on productivity in sectors where it is more extensive.
    Economic Record 12/2011; 87(279):603-616. DOI:10.1111/j.1475-4932.2011.00757.x · 0.38 Impact Factor
Show more