Collective Minimum Contributions to Counteract the Ratchet Effect in the Voluntary Provision of Public Goods
M. Alt, M. Kesternich, C. Gallier, B. Sturm, Journal of Environmental Economics and Management (2023).

Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics
J. Brosig-Koch, B. Hehenkamp, J. Kokot, Health Economics (2023).