The impact of unions on profitability is investigated through a comprehensive meta-analysis and meta-regression analysis of the available literature. Drawing upon 57 published empirical studies, with 91,200 observations, the paper establishes a negative and statistically significant union-profit...

A number of conflicting theoretical hypotheses have been advanced regarding the impact of unions on investment behavior. The net impact of unions on investment is thus an empirical issue. In this paper the available empirical literature is reviewed. In addition, new evidence of the impact of...

Publication bias arises when statistically non-significant results are suppressed or when only results satisfying prior expectations are published. Like most fields, research in industrial relations is vulnerable to publication bias. In this paper, qualitative and quantitative techniques are...