Humboldt-Universität zu Berlin - Resource Economics

Dr. Achim Hagen


Achim Hagen
Fig.: Falk Weiss HumboldtUni


Research Interests



  • Political Economy of Climate Change
  • International Environmental Agreements
  • Polycentric Climate Governance

Room: 1.23
Phone: +49-30-2093-46376
Fax:     +49-30-2093-46361



Affiliations and Positions

  • since 2018 Postdoc, Resource Economics Group, Humboldt-Universität zu Berlin.
  • since 2020 Research Associate, Berlin School of Economics.
  • since 2020 Fellow, Berlin Center for Consumer Policies (BCCP).

Research Visits

  • 09-11/2020 University of Oslo
  • 11/2018-01/2019 Wageningen University
  • 09-10/2017 American University of Central Asia
  • 04-05/2017 London School of Economics and Political Science


  • 2018 PhD, Humboldt-Universität zu Berlin. Thesis title: Global Climate Policy Beyond Nation-State Actors: An Economic Analysis of Environmental Cooperation.
  • 2014 Master of Arts Sustainability Economics and Management, Carl von Ossietzky University Oldenburg.


Selected Publications

Hagen, A. and J. Schneider (2022). ‘Small Climate Clubs Should Not Use Trade Sanctions’. Energy Research & Social Science 92 (October): 102777.

Hagen, A., & Schneider, J. (2021). Trade sanctions and the stability of climate coalitions. Journal of Environmental Economics and Management, 102504,

Eisenack, K., A. Hagen, R. Mendelevitch and A. Vogt. (2021). Politics, profits and climate  policies: How much is at stake for fossil fuel producers? Energy Research & Social Science 77, 102092,

Hagen, A., J.-C. Altamirano-Cabrera and H.-P. Weikard (2020) National political pressure groups and the stability of international environmental agreements, International Environmental Agreements: Politics, Law and Economics,

Hagen, A., P. von Mouche, and H. P. Weikard (2020). The Two-Stage Game Approach to Coalition Formation: Where We Stand and Ways to Go. Games 11(1), 3.

Hagen, A., Eisenack, K. (2019). “Climate Clubs Versus Single Coalitions: The Ambitions of International Environmental Agreements.” Climate Change Economics 10 (3).


Complete CV including publication list (pdf)