The politics of the minimum wage: Explaining introduction and levels

There is much economics research on the effects of minimum wages, but little research on their politics. Yet, ever more advanced capitalist democracies have introduced minimum wages, and the setting of minimum wage levels has become increasingly politicized. This article is the first comprehensive study of the politics of the minimum wage: We analyse the determinants of adopting minimum wages as well as what explains variation in their levels over time, based on a dataset of 33 OECD countries from 1960 to 2017. We find that the decline in collective bargaining is the main driving force behind the introduction of ever more minimum wages. At the same time, left‐wing parties in government are most likely to adopt a minimum wage when bargaining coverage is low. Left governments are also associated with higher minimum wages, especially when the government has full control over level‐setting.