Rossel, Cecilia; González de Reufels, Delia; Nullmeier, Frank, 2025: Social Security of State Employees. Historical Developments Around the World, Cham: Palgrave Macmillan, (forthcoming)

Nullmeier, Frank, 2021: Kausale Mechanismen und Process Tracing. Perspektiven der qualitativen Politikforschung, Frankfurt a.M., New York: Campus, Download PDF, Link (Date: 10.09.2021)

Nullmeier, Frank; González de Reufels, Delia; Obinger, Herbert (Ed.), 2022: International Impacts on Social Policy. Short Histories in Global Perspective, Global Dynamics of Social Policy, Cham: Palgrave Macmillan, doi:10.1007/978-3-030-86645-7

Kuhlmann, Johanna; Nullmeier, Frank (Ed.), 2022: Causal Mechanisms in the Global Development of Social Policies, Global Dynamics of Social Policy, Cham: Palgrave Macmillan, doi:10.1007/978-3-030-91088-4

Kuhlmann, Johanna; Nullmeier, Frank, 2021: A mechanism-based approach to the comparison of national pension systems in Vietnam and Sri Lanka, in: Social Policy & Administration, online-first, doi:10.1111/spol.12691

Kuhlmann, Johanna; González de Reufels, Delia; Schlichte, Klaus; Nullmeier, Frank, 2020: How social policy travels: A refined model of diffusion, in: Global Social Policy, 20 (1), pp. 80 - 96, doi:10.1177/1468018119888443

Nullmeier, Frank, 2019: Interpretative Politikforschung und kausale Mechanismen, in: Zeitschrift für Politikwissenschaft, 29 (2), pp. 153 - 172, doi:10.1007/s41358-019-00179-2

Nullmeier, Frank, 2020: Covid-19-Pandemie und soziale Freiheit , in: Zeitschrift für politische Theorie, 2020 (1), pp. 127 - 154, doi:10.3224/zpth.v11i1.13

Kuhlmann, Johanna; Nullmeier, Frank, 2022: Causal mechanisms in the development of contribution-based pension systems in South Korea, Vietnam, Sri Lanka and Malaysia, in: Kuhlmann, Johanna; Nullmeier, Frank (Ed.), Causal mechanisms in the global development of social policies, Global Dynamics of Social Policy, Cham: Palgrave Macmillan, pp. 67 - 102, doi:10.1007/978-3-030-91088-4_3

Nullmeier, Frank, 2022: The Structural Adaptability of Bismarckian Social Insurance Systems in the Digital Age, in: Busemeyer, Marius R.; Kemmerling, Achim; Marx, Paul; van Kersbergen, Kees (Ed.), Digitalization and the Welfare State, Oxford: Oxford University Press, pp. 290 - 303