The effect of unions on profits continues to be an unresolved empirical issue. In this paper, meta-regression analysis is applied to the population of 45 econometric studies that report 532 estimates of the direct effect of unions on profits. We show that unions have a significant negative...

1. A bibliometric analysis of what do unions do? -- 2. Research synthesis through meta-regression analysis -- 3. Unions and productivity : direct estimates -- 4. Unions and productivity growth -- 5. Unions and productivity : investment channels -- 6. Unions and productivity : employee behavior...

In this article we re-examine the relationship between group-based profit sharing and productivity. Our meta-regression analysis of 313 estimates from 56 studies controls for publication selection and misspecification biases and investigates the impact of firm level unionisation and national...