The European Participation Index (EPI) and inequality: a multi-dimensional cross-national comparative measure of worker participation

Is worker participation becoming more prominent or less? Furthermore, what is the impact of worker participation on economic performance? This article introduces a tool designed by researchers at the ETUI to help answer these questions: the European Participation Index (EPI), a country-level summary measure of the strength of workers’ voice in companies. The EPI is based on (i) union density and collective bargaining coverage, (ii) workplace representation and (iii) board-level representation. This multi-level index provides an alternative to existing cross-national measures by taking into consideration two levels at which worker participation can take place: the workplace and the board. The article shows first that worker participation has become less prevalent in the EU over the past decade; and second that the EPI is robust and has superior explanatory power in relation to income inequality compared with traditional measures of collective bargaining.