"At the Russell Sage Foundation, Professor Solow, long interested in the social effects of economics, supervised a major project studying low-wage work in five advanced economies in Europe and the United States. The study found that such work was far more prevalent in the United States than in the other countries, and that the living conditions of low-wage workers were better in Europe because of a more generous social-safety net there, along with rules that provided workers with greater bargaining power."

https://www.nytimes.com/2023/12/21/business/robert-solow-dead.html