I am an assistant professor (tenure track) at the Düsseldorf Institute for Competition Economics (DICE) at the University of Düsseldorf.
Heinrich Heine Universität Düsseldorf
Düsseldorf Institute for Competition Economics (DICE)
Universitätsstraße 1
40225 Düsseldorf
Germany
romahn [at] hhu de
You can download my CV here.
Cash or Care? Insights from the German Long-Term Care System, with Iris Kesternich, Jo van Biesebroeck, and Marjolein van Damme
The Informational Content of Consumer Choice in Differentiated Product Markets, with Johannes Kandelhardt and Christine Zulehner
Simulation Error and Numerical Instability in Estimating Random Coefficient Logit Demand Models, with Daniel Brunner, Florian Heiss and Constantin Weiser, Journal of Econometrics, https://doi.org/10.1016/j.jeconom.2025.105953, 2025
Evaluating the Impact of Online Market Integration –Evidence from the EU Portable PC Market, with Nestor Duch-Brown, Lukasz Grzybowski and Frank Verboven, American Economic Journal: Microeconomics, DOI: 10.1257/mic.20200254, 2023
Are Online Markets More Integrated than Traditional Markets? Evidence from Consumer Electronics, with Nestor Duch-Brown, Lukasz Grzybowski and Frank Verboven, Journal of International Economics, 2021
Pass-Through by Multi-Product Firms, with Richard Friberg, International Journal of the Economics of Business, 2018
The Impact of Online Sales on Consumers and Firms: Evidence from Consumer Electronics, with Nestor Duch-Brown, Lukasz Grzybowski and Frank Verboven, International Journal of Industrial Organization, 2017
Divestiture Requirements as a Tool for Competition Policy: A Case from the Swedish Beer Market, with Richard Friberg, International Journal of Industrial Organization, 2015
Pflege und Pflegekosten in der Zukunft – Brauchen wir mehr Versicherungsschutz?, with Iris Kesternich, Jo van Biesebroeck and Marjolein van Damme, Wirtschaftsdienst, 104(11), 789-793, link, 2024