@articleBrosig-Koch_Hehenkamp_Kokot_2023, title=Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics, DOI=10.1002/hec.4689, journal=Health Economics, author=Brosig-Koch, Jeannette and Hehenkamp, Burkhard and Kokot, Johanna, year=2023 

@articleAlt_Kesternich_Gallier_Sturm_2023, title=Collective Minimum Contributions to Counteract the Ratchet Effect in the Voluntary Provision of Public Goods, DOI=10.2139/ssrn.4288327, journal=Journal of Environmental Economics and Management, author=Alt, Marius and Kesternich, Martin and Gallier, Carlo and Sturm, Bodo, year=2023