Working papers
The effect of technology-assisted behavioral interventions in type 2 diabetes (with Sofia Monteiro, Kate Larmuth, Jacolene Kroff, and Matthias Sutter); AEA-RCT-ID: AEARCTR-0005871.
On the role of personality traits in shaping responses to physician payment systems (with Jeannette Brosig-Koch, Heike Hennig-Schmidt Nadja Kairies-Schwarz, and Johanna Kokot). R&R Therory and Decision.
Self-selection into health professions (with Alessandro Fedele and Mirco Tonin).
How son preference affects child health and food consumption: Causal evidence from rural Bangladesh (with Khalid Imran).
Publications
26. How the Design of Ranking Systems and Ability Affect Physician Effort (with Katharina Huesmann, Yero Ndiaye, and Christian Waibel). Management Science, 2025.
25. How perceptions of bone marrow donation costs affect donation behavior: Survey evidence from a large donor registry (with Michael Haylock, Mario Macis, Patrick Kampkötter, Robert Slonim, Edith Wienand, Susanne Seitz). European Journal of Health Economics. 2025, doi.org/10.1007/s10198-025-01785-4
24. The effects of fee-for-service, capitation, and pay for performance on the quantity and the quality of care: A systematic experimental analysis (with Jeannette Brosig-Koch, Mona Groß, Heike Hennig-Schmidt, and Nadja Kairies-Schwarz). International Journal of Health Economics and Management. 2025.
23. Structured lactation support for mothers of very low birth weight preterm infants and establishment of human donor milk banks in German NICUs (Neo-MILK): Protocol for a hybrid type 1 effectiveness-implementation cluster- randomised controlled trial (with Nicola Dymek, Julia Jaschke, Anna Stirner, Isabella Schwab, Tim Ohnhaeuser, Till Dresbach, Nadine Scholten, and Juliane Köberlein-Neu). BMJ Open. 2025, 15, e084746. doi: 10.1136/bmjopen-2024-084746
22. Improving the availability of unrelated stem cell donors: Evidence from a major donor registry (with Michael Haylock, Patrick Kampkötter, Mario Macis, Jürgen Sauter, Alexander Schmidt, Susanne Seitz , and Robert Slonim [IZA Working paper, NBER Working paper]. 2025, American Journal of Health Economics. Media coverage: voxeu.org
21. What is the relationship between risk attitudes and ambient temperature? Evidence from a large population-based cohort study (with Adriana König, Michael Laxy Lars Schwettmann, Annette Peters, Alexandra Schneider, and Kathrin Wolf). Economics and Human Biology. 2024, 55, 101436.
20. A new look at physicians’ responses to financial incentives: Quality of care, practice characteristics, and motivations (with Jeannette Brosig-Koch, Heike Hennig-Schmidt, Nadja Kairies-Schwarz, and Johanna Kokot). Journal of Health Economics, 2024, 94, 102862, 10.1016/j.jhealeco.2024.102862
19. Effectiveness of behavioural economics-informed interventions to promote physical activity: a systematic review and meta-analysis (with Stephanie Stock, Dirk Müller, Olaf Karasch, Helena Reisgies, Benjamin Scheckel, and Arim Shukri). Social Science & Medicine. 2023, 338, 116341, 10.1016/j.socscimed.2023.116341.
18. Changing preferences: An experiment and estimation of market-incentive effects on altruism (with Undral Byambadalai and Albert Ma). Journal of Health Economics, 2023, 102808,10.1016/j.jhealeco.2023.102808.
17. Economics of healthcare provider altruism (with Matteo Galizzi, Geir Godager, Jing Li, Ismo Linnosmaa, and Timo Tammi). Handbook of Labor, Human Resources and Population Economics, edited by K. Zimmermann.
16. The formation of physician altruism (with Arthur Attema, Mona Groß, Matteo Galizzi, Yassin Karay, Heike Hennig-Schmidt, and Olivier l’Haridon). Journal of Health Economics, 2023, 87, 102716, 10.1016/j.jhealeco.2022.102716.
15. Einsatz verhaltensökonomischer Interventionen zur Verbesserung ärztlicher Entscheidungen (with Michael Hallek and Axel Ockenfels). Deutsches Ärztelblatt, 2022, 119, 633-639, 10.3238/arztebl.m2022.0275
14. The effects of audits and fines on upcoding in neonatology (with Mona Groß and Hendrik Jürges). Health Economics, 2021, 30, 1978-1986, https://doi.org/10.1002/hec.4272.
13. An experiment on referrals in health care (with Christian Waibel). European Economic Review, 2021, 131, 103612, https://doi.org/10.1016/j.euroecorev.2020.103612.
12. The effect of expert feedback on antibiotics provision in pediatrics: Experimental evidence (with Kerstin Eilermann, Katrin Halstenberg, Kyriakos Martakis, Ludwig Kuntz, and Bernd Roth). Medical Decision Making, 2019, 39, 781-795. Media coverage: Ärzteblatt (08.10.2019), Kölner Stadtanzeiger (22.09.2019), University of Cologne press portal (12.09.2019)
11. Do good and talk about it! Disclosure and reward of discretionary kindness (with Oliver Gürtler and Gari Walkowitz). Journal of Economic Behavior & Organization, 2019, 161: 323-342.
10. Dishonesty in healthcare practice: A behavioral experiment on upcoding in neonatology (with Heike Hennig-Schmidt and Hendirk Jürges). Health Economics, 2019, 28: 319-338.
9. Behavioral Experiments in Health Economics (with Matteo M. Galizzi). Oxford Encyclopedia in Economics and Finance, 2018.
8. Behavioral Experiments in Health: an Introduction (with Matteo M. Galizzi). Health Economics, 2017, 26 (S3), 3-5.
7. The Effects of Introducing Mixed Payment Systems for Physicians: Experimental Evidence (with Jeannette Brosig-Koch, Heike Hennig-Schmidt, and Nadja Kairies-Schwarz). Health Economics, 2017, 26 (2), 243–262.
6. Using artefactual field and lab experiments to investigate how fee-for-service and capitation affect medical service provision (with Jeannette Brosig-Koch, Heike Hennig-Schmidt, and Nadja Kairies-Schwarz). Journal of Economic Behavior & Organization, 2016, 131B, 17-23.
5. Joint Measurement of Risk Aversion, Prudence, and Temperance (with Sebastian Ebert). Journal of Risk and Uncertainty, 48(3), 231-252, 2014.
4. Other-regarding Behavior and Motivation in Health Care Provision: An Experiment with Medical and Non-medical Students (with Heike Hennig-Schmidt). Social Science & Medicine, 2014, 108, 156-165.
3. Profit or Patients' Health Benefit? Exploring the Heterogeneity in Physician Altruism (with Geir Godager). Journal of Health Economics, 2013, 32(6), 1105–1116.
2. How Payment Systems Affect Physicians' Provision Behavior - An Experimental Investigation (with Heike Hennig-Schmidt and Reinhard Selten). Journal of Health Economics, 2011, 30(4), 637–646.
1. Testing for Prudence and Skewness Seeking (with Sebastian Ebert). Management Science, 2011, 57(7), 1334–1349.
Work in progress (selected)
Improving the availability of stem-cell donors: A natural field experiment, with Mario Macis (JHU), Michael Haylock (CINCH Essen), Patrick Kampkötter (Tübingen), and Robert Slonim (UTS); AEA-RCT-ID: AEARCTR-0008938; presented at at BMS research afternoon (University of Cologne), University of Duisburg-Essen, ASHEcon 2024, EUHEA 2024, BEHnet Hamburg 2024, dggö Allocation and distribution workshop 2024, and Field Experiments in Economics and Business in Heilbronn 2024.
An experiment on decision support with Bernd Roth (University Hospital Cologne) and Anna Stirner (Cologne); AsPredicted-ID: 39543; presented at dggö Hannover, SMDM Seattle, and INFORMS Healthcare Toronto.
The effect of second opinions on healthcare costs: An empirical investigation, with Yero Ndiaye and Felix Mindl (both U Cologne); presented at BMS research afternoon, dggö Hannover, and Verein für Scoialpolitik "Sozialwissenschaftlicher Ausschuss" Berlin.
Default rules, ethical reminders, and registration costs: An experiment on stem-cell donor registration, with Helene Könnecke (IGKE, University Hospital Cologne), Simon Reif (ZEW), and Harald Tauchmann (FAU); presented at dggö Hannover, EuHEA Vienna, and iHEA Cape Town.
On the stability of social preferences, with Arthur Attema (EUR), Olivier l’Haridon (U Rennes), Matteo Galizzi (LSE), and Francois-Charles Wolff (U Nantes); presented at CHE York, U Paris-Nanterre, and HCHE Hamburg.
Effects of provider incentives on service quantity and quality: A systematic review of the experimental evidence, with Jeannette Brosig-Koch, Heike Hennig-Schmidt, Nadja Kairies-Schwarz, Johanna Kokot, and Farahim Suleymanli; PROSPERO-ID: 625970.