The impact of unions on firm performance has been the subject of debate and controversy in most industrialized countries, particularly in the United States and the United Kingdom. The purpose of this chapter is to review and assess the scope and limitations of the economic analysis of unions as...

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...