Universität zu Köln

Ockenfels, Axel ORCID: 0000-0003-1456-0191 and Roth, Alvin E. ORCID: 0000-0002-8834-6481 (2024). Anreize für Altruismus: Über die Auswirkungen unbezahlter Blutplasmaspenden. Medizinrecht: MedR, 42 (3). pp. 175-176. Springer. ISSN 0723-8886

Elias, Julio J., Lacetera, Nicola ORCID: 0000-0002-3191-8792, Macis, Mario ORCID: 0000-0001-6635-2752, Ockenfels, Axel ORCID: 0000-0003-1456-0191 and Roth, Alvin E. ORCID: 0000-0002-8834-6481 (2024). Quality and safety for substances of human origins: scientific evidence and the new EU regulations. BMJ Global Health, 9 (4). e015122. BMJ Publishing Group. ISSN 2059-7908

Ockenfels, Axel ORCID: 0000-0003-1456-0191 and Roth, Alvin E. ORCID: 0000-0002-8834-6481 (2023). Consequences of Unpaid Blood Plasma Donations. Working Paper.

Ambuehl, Sandro ORCID: 0000-0001-9500-2698, Ockenfels, Axel ORCID: 0000-0003-1456-0191 and Roth, Alvin E. ORCID: 0000-0002-8834-6481 (2020). Is it acceptable to pay nothing or little to challenge trial participants? BMJ Publishing Group.

Cramton, Peter ORCID: 0000-0001-8621-1092, Ockenfels, Axel ORCID: 0000-0003-1456-0191, Roth, Alvin E. ORCID: 0000-0002-8834-6481 and Wilson, Robert B. (2020). Markt in Not. Süddeutsche Zeitung. p. 28. Süddeutscher Verlag. ISSN 0174-4917

Ambuehl, Sandro ORCID: 0000-0001-9500-2698, Ockenfels, Axel ORCID: 0000-0003-1456-0191 and Roth, Alvin E. ORCID: 0000-0002-8834-6481 (2020). Payment in challenge studies from an economics perspective. Journal of Medical Ethics. BMJ Publ.. ISSN 1473-4257