Research interests: Religion, cultural values, long run economic growth, geography, institutions, economic history, development.

In Crisis We Pray: Religiosity and the COVID-19 Pandemic (2021) Journal of Economic Behavior & Organization, volume 192, p 541-583.

Available as column here. Selected press coverage by The Washington Post, The Wall Street Journal, The TelegraphPsychology Today, The Tablet The Conversation, Berlingske Tidende.

Replication files.

Acts of God? Religiosity and Natural Disasters Across Subnational World Districts (2019), The Economic Journal 129(622) 2295-2321.

Replication files. Online appendix. Additional GIS data.

Power and Persistence: The Indigenous Roots of Representative Democracy (2019) The Economic Journal 129(618) 678-714. With Jacob Gerner Hariri and James A. Robinson
          Online appendix: here. Replication files here.

Irrigation and Autocracy (2017) Journal of European Economic Association 15(1), February. Lead article.
With Nicolai Kaarsen and Asger Moll Wingender   

Data and do-files. Irrigation potential GIS data

Pre-Reformation Roots of the Protestant Ethic (2017) The Economic Journal 127(604) 1756-1793. With Thomas Barnebeck Andersen, Carl-Johan Dalgaard, and Paul Sharp.

Features on voxeu.

Data and do-files. Additional GIS data

Lightning, IT Diffusion and Economic Growth across US States (2012) Review of Economics and Statistics 94(4) 903-924.
With Thomas Barnebeck Andersen, Carl-Johan Dalgaard and Pablo Selaya

Data zip file. Web Appendix

How Bad is Corruption? Cross-Country Evidence of the Impact of Corruption on Economic Development (2012) Review of Development Economics 16(1) 167-184.

        Web Appendix
Does the Internet Reduce Corruption? Evidence From U.S. States and Across Countries (2011), World Bank Economic Review 25(3) 387-417. With Thomas Barnebeck Andersen, Carl-Johan Dalgaard and Pablo Selaya. Data zip file.
Credit Demand in Mozambican Manufacturing (2010), Journal of International Development 22(1) 37-55. With Bruce Byiers, John Rand and Finn Tarp. 

Trade and Development: Lessons from Vietnam's Past Trade Agreements (2009), World Development 37(2) 341-353. With Philip Abbott and Finn Tarp. 

Invited book chapters

Religiosity and Development (2021) Chapter in Oxford Research Encyclopedia of Economics and Finance, Oxford University Press. doi: 10.1093/acrefore/9780190625979.013.688.

Online appendix.

Did seismic activity lead to the rise of religions? (2021) Chapter in Handbook of Economics and Religion, World Scientific.

Why are some societies more religious than others? (2019) Chapter in Advances in the economics of religion, Palgrave, International Economics Association (Jean-Paul Carvalho, Jared Rubin, and Sriya Iyers, Editors).



In the Name of God! Religiosity and the Transition to Modern Economic Growth (2021). With Lars Harhoff Andersen. 

God Politics: Religion, Attitudes, and Outcomes (2020) CEPR Discussion Paper 37664-1579686228. With Lena Sperling. [This version Dec 2020]

The Power of Religion (2020) CEPR Discussion Paper 14706. Revision requested by Journal of Econmic Growth. With Gunes Gokmen. [This version Nov 2020]


Old Working Papers
The Timing of Industrialization Across Countries (2013) Univ. of Copenhagen Dept. of Economics Discussion Paper No. 13-17. With Nicolai Kaarsen and Asger Moll Wingender.


A critical review of studies on the social and economic impacts of Vietnam's international economic integration (2006), Central Institute of Economic Management (CIEM), PRG.2.06.01. With Philip Abbott, P. L. Huong, and Finn Tarp.

Sociale relationer og helbred: Er de ensomme meget ensomme, og er der sammenhæng mellem ensomhed og sygdom? (2003) The Danish National Institute of Social Research Working Paper 08:2003.

Levevilkår blandt folkepensionister uden supplerende indkomst (2003) The Danish National Institute of Social Research Report 03:15. With Jacob Nielsen Arendt, Eigil Boll Hansen, Henning Olsen, Martin Rasmussen, and Brian Rimdal.