Daniel Weishaar
Postdoctoral Researcher, University of Cologne · ECONtribute Cluster of Excellence
I’m an economist working on policy-relevant topics in public economics, political economy, and normative economics. My current work ranges from tax havens in real estate markets and the taxation of couples, to fairness preferences and beliefs about inequality.
In my work, I combine economic theory with large-scale administrative micro-data, non-standard digital data (e.g., offshore leaks), and online survey experiments to uncover economic mechanisms and preferences that cannot be studied with standard approaches alone.
My dissertation received the inaugural Dissertation Prize from the Standing Field Committee in Public Economics of the Verein für Socialpolitik and I was awarded an Add-on Fellowship for Interdisciplinary Economics from the Joachim Herz Foundation.
I obtained my Ph.D. from LMU Munich in 2025 and have held visiting positions at the University of California, Berkeley, and Columbia University.
Featured papers
Combining digital UK land register data, global ownership chains and data from offshore leaks, we investigate the extent, causes and consequences of tax havens in real estate markets, showing that offshore demand inflates prices and is linked to tax and secrecy motives.
A theory of Pareto-improving and welfare-improving tax reforms under multidimensional heterogeneity, applied to the taxation of couples in the United States — with an impossibility result for the standard tax-perturbation approach.
Recent and upcoming conferences
Contact
Email d.weishaar@wiso.uni-koeln.de
Office 4.232 (SSC) Universitätsstraße 22a; 50937 Cologne
Online Google Scholar · Bluesky · X · LinkedIn · GitHub