Yerkes’ expertise centres on the two broad themes of comparative social policy and social inequalities. In relation to social policy, Yerkes researches comparative welfare states, industrial relations and citizenship regimes. In relation to social inequalities, Yerkes’ research interests include inequalities related to work, care, communities and families, in particular in relation to gender, generations, and sexuality. These two themes come together in her most recent research project, a European Research Council (ERC) Consolidator project entitled CAPABLE. The project, which started in December 2018, investigates women and men’s real opportunities to balance work-life, and the role of social policy in shaping these opportunities. Yerkes is the author of three books, including Transforming the Dutch Welfare State: Social Risks and Corporatist Reform (2011; Policy Press), co-editor of The Transformation of Solidarity. Changing Risks and the Future of the Welfare State (2011; Amsterdam University Press), and co-editor of the forthcoming book Social Policy and the Capability Approach (Policy Press, publication in 2019). She has published a wide range of book chapters and articles, in journals such as Community, Work and Family; European Journal of Industrial Relations; Gender, Work and Organization; Journal of Comparative Welfare Studies; Journal of European Social Policy; Journal of Social Policy; Journal of Sociology; PlosOne; Policy and Politics; Social Policy and Administration, and is the author of the Social Policy entry for Oxford University Press’s Online Bibliographies in Sociology.