WORKING PAPERS

"The Average and Heterogeneous Effects of Transportation Investments: Evidence from Sub-Saharan Africa", with Adam Storeygard (Tufts). R&R at the Journal of the European Economic Association.

Paper: Click Here.

Web Appendices: Click Here.

“The Economics of Missionary Expansion: Evidence from Africa and Implications for Development”, with Felix Meier zu Selhausen (Sussex) and Alexander Moradi (Sussex). ​R&R at the Journal of Economic Growth.

Paper: Click Here.

Web Appendices: Click Here.

"Human Capital Accumulation at Work: Estimates and Implications for Growth", with Asif Islam (World Bank) and Paul Romer (NYU). To be submitted soon.

Paper: Click Here.

Web Appendices: Click Here.

"Returns to Experience and the Sectoral and Spatial Allocation of Labor", with Asif Islam (World Bank) Paul Romer (NYU) and Daniel Pereira (GWU). To be submitted soon.

Paper: Click Here.

Web Appendices: Click Here.

"Cities without Skylines: Gauging the Impact of Land-Use Regulation around the World", with Jason Barr (Rutgers) and Jan Brueckner (UC-Irvine). Working paper.

Paper: Click Here.

Web Appendices: Click Here.

"Cities of Workers, Children or Seniors: Age Structure and Economic Growth in a Global Cross-Section of Cities", with Daniel Pereira (GWU) and Mark Roberts (WB). Under review.

Paper: Click Here.

“How Should We Measure City Size? Theory and Evidence Within and Across Rich and Poor Countries”, with Prakash Loungani (IMF) and Anthony Yezer (GWU). Under review.

Paper: Click Here.

"Modern Urban Technology and the Future of the New Urban Giants", with Prakash Loungani (IMF) and Anthony Yezer (GWU). Working paper.

Paper: Click Here.

Web Appendices: Click Here.

"The Economic Effects of Pandemics: Evidence from the Black Death", with Mark Koyama (GMU) and Noel Johnson (GMU). Under review.

Paper: Click Here.

Web Appendices: Click Here.

"Killer Cities or Killer Urban Systems? The Historical Effects of City Size on Fertility and Mortality", with Marina Gindelsky (Bureau of Economic Analysis). Working paper.

Paper: Click Here.

Web Appendices: Click Here.

"Urbanization without Industrialization: Evidence from Consumption Cities in Africa". Working paper.

Paper: Click Here

Religion and Economic Development: The Causal Impact of European Missionaries in Africa Revisited”, with Felix Meier zu Selhausen and Alexander Moradi.