Late-Career Unemployment and Cognitive Abilities
D. Freise, H. Schmitz, M. Westphal, Journal of Health Economics 86 (2022).

Marginal College Wage Premium under Selection into Employment
M. Westphal, D.A. Kamhöfer, H. Schmitz, Economic Journal 132 (2022) 2231–2272.

The dynamic and heterogeneous effects of retirement on cognitive decline
H. Schmitz, M. Westphal, The Dynamic and Heterogeneous Effects of Retirement on Cognitive Decline, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen, 2021.

Heterogeneity in Marginal Non-Monetary Returns to Higher Education
D.A. Kamhöfer, H. Schmitz, M. Westphal, Journal of the European Economic Association 17 (2019) 205–244.

Informal Care and Long-term Labor Market Outcomes
H. Schmitz, M. Westphal, Journal of Health Economics 56 (2017) 1–18.

Short-and medium-term effects of informal care provision on female caregivers’ health
H. Schmitz, M. Westphal, Journal of Health Economics 42 (2015) 174–185.