Doucouliagos, Chris and Laroche, Patrice 2009, Unions and profits : a meta-regression analysis, Industrial relations : a journal of economy and society, vol. 48, no. 1, pp. 146-184.
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Industrial relations : a journal of economy and society
Volume number
48
Issue number
1
Start page
146
End page
184
Publisher
Blackwell
Place of publication
Malden, Ma.
Publication date
2009-01
ISSN
0019-8676 1468-232X
Summary
The effect of unions on profits continues to be an unresolved theoretical and empirical issue. In this paper, clustered data analysis and hierarchical linear meta-regression models are applied to the population of forty-five econometric studies that report 532 estimates of the direct effect of unions on profits. Unions have a significant negative effect on profits in the United States, and this effect is larger when market-based measures of profits are used. Separate meta-regression analyses are used to identify the effects of market power and long-lived assets on profits, as well as the sources of union-profit effects. The accumulated evidence rejects market power as a source of union-profit effects. While the case is not yet proven, there is some evidence in support of the appropriation of quasi-rent hypothesis. There is a clear need for further American and non-American primary research in this area.