Publications

Journal Articles

• Optimal Pricing of a New Utility Service: The Case of Piped Water in Vietnam, joint with Hanan Jacoby. Review of Economic Studies, forthcoming.

  • • Latest version: World Bank Policy Research Working Paper 9207

• Transnational Terrorism and the Internet, joint with Nicolas Gomes-Parra and Bob Rijkers. Journal of Development Economics, 164: 103-18, September 2023. 

  • • Latest version: World Bank Policy Research Working Paper 9885

• The Prices in the Crises: What we are Learning from 20 Years of Health Insurance in Low- and Middle-Income Countries, joint with Jishnu Das. Journal of Economic Perspectives, 37(2): 123-52, Spring 2023.  

  • • Outreach and media: VoxEU; Ideas for India

    • Other versions: World Bank Policy Research Working Paper 10313 | NBER Working Paper 30996 

• Taxation, Accountability, and Cash Transfers: Breaking the Resource Curse, joint with Shantayanan Devarajan. Journal of Public Economics, 218, February 2023.

  • • Latest version: World Bank Policy Research Working Paper 9880

• The Intergenerational Tradeoff of COVID-19 Lockdown Policies, joint with Lin Ma, Gil Shapira, Damien de Walque, Jed Friedman, and Andrei A. Levchenko. International Economic Review, 63(3): 1427-68, August 2022.  

  • • Outreach and media: Let's Talk Development blog; The Economist; VoxEU; Ideas for India; Der Spiegel

    • Latest version: World Bank Policy Research Working Paper 9677 

    • Older versions: NBER Working Paper 28925 | CEPR Discussion Paper 16227

• Unemployment and Violent Extremism: Evidence from Daesh Foreign Recruits, with Mohamed Abdel Jelil, Kartika Bhatia, Anne Brockmeyer, and Clement Joubert. Review of Economics and Statistics, forthcoming.

  • • Outreach: Let's Talk Development blog

    • Latest version: World Bank Policy Research Working Paper 8381 (March 2018)

• The Globalization of Refugee Flows, with Xavier Devictor and Andrei A. Levchenko. Journal of Development Economics, 150, January 2021.

  • • Latest version: World Bank Policy Research Working Paper 9206

    • Outreach: The Economist, VoxEU

    • Data and Replication files

• The Price Elasticity of African Elephant Poaching, with Andrei A. Levchenko, Lin Ma, Julian Blanc, Holly Dublin, and Tom Milliken. World Bank Economic Review, 35(3): 545-562, October 2021.

  • • Latest version: World Bank Policy Research Working Paper 8335 (April 2020)

    • Data and Replication files

• Terrorism, geopolitics, and oil security : using remote sensing to estimate oil production of the Islamic State, joint with Jake Shapiro, Chris Elvidge, Mohamed Abdel Jelil, Daniel Ahn, Kim Baugh, Jamie Hansen-Lewis, Misha Zhizhin, and Morgan Bazilian. Energy Research and Social Science, 44: 411-418, October 2018

  • • Outreach: Let's Talk Development | CIRES blog 

    • Latest version: World Bank Policy Research Working Paper 8231 (October 2017)

• Can Environmental Policy Reduce Infant Mortality? Evidence from the Ganga Pollution Cases, joint with Shareen Joshi and Samuel Stolper. Journal of Development Economics, 113(3): 306-325, July 2018

  • • Outreach: Let's Talk Development | IGC blog

    • Other versions: World Bank Policy Research Working Paper 7799 (August 2016 - updated March 2018)

    • Data: Read me file | River pollution data (district-month: 1986-2004) | River pollution data (monitor-month: 1986-2004) | Infant survival data (1971-2004) | Replication codes 

• Trade Policy and Redistribution when Preferences are Non-Homothetic, joint with Andrei A. Levchenko. Economics Letters, 155, June 2017

  • • Other versions: World Bank Policy Research Working Paper 8005 (March 2017) | NBER Working Paper 23237 | CEPR Discussion Paper 11890 | RSIE Discussion Paper 656

• How Many Years Have Refugees Been in Exile?, joint with Xavier Devictor. Population and Development Review, 43(2), June 2017

  • • Outreach: Development for Peace (2016)

    • Latest version: World Bank Policy Research Working Paper 7810 (September 2016)

• Comparative Advantage, International Trade, and Fertility, joint with Andrei A. Levchenko and Claudio E. Raddatz. Journal of Development Economics, 119: 48-66, March 2016

  • • Outreach: Let's Talk Development 

    • Other versions:  World Bank Policy Research Working Paper 6930 (June 2014) | NBER Working Paper 21677 | CEPR Discussion Paper 10903 | RSIE Discussion Paper 624

• U.S. and Them: The Geography of Academic Research, joint with Jishnu Das, Karen Shaines and Sowmya Srikant. Journal of Development Economics, 105: 112-130, November 2013

  • • Data: Data (updated December 2009)

    • Outreach: VoxEU 

    • Other versions: World Bank Policy Research Working Paper 5152 (November 2009)

• The Economics of Consanguineous Marriages, joint with Sriya Iyer and Shareen Joshi. Review of Economics and Statistics, 95(3): 904-918, July 2013

  • • Outreach: AlJazeera's The Stream

    • Other versions: Latest version (January 2012) | World Bank Policy Research Working Paper 4085 (December 2006)

• Geographic distance and Credit Market Access in Rural Niger, joint with Jose Pedrosa. African Development Review, 23(3): 289-299, September 2011 

  • • Other versions: Latest version (June 2011) | World Bank Policy Research Working Paper 4772 (November 2008)

• The Importance of Being Wanted, joint with Tung D. Phung. American Economic Journal: Applied Economics, 2(4): 236-253, October 2010

  • • Outreach: The Atlantic (2006)

    • Other versions: Latest version (Feb. 2010) | World Bank Policy Research Working Paper 4001 (August 2006)

• Geography, poverty and conflict in Nepal, joint with Lakshmi Iyer. Journal of Peace Research, 47(6): 735-748, November 2010 

  • • Data: Nepal civil conflict data (2002-2006)

    • Other versions: Latest version (October 2009) | World Bank Policy Research Working Paper 4228 (May 2005)

• Trade, Inequality, and the Political Economy of Institutions, joint with Andrei A. Levchenko. Journal of Economic Theory, 114(4): 1489-520, July 2009.

  • • Other versions: Latest version (November 2008) | World Bank Policy Research Working Paper 3836 (February 2006)

• Mental health patterns and consequences: results from survey data in five developing countries, joint with Jishnu Das, Jed Friedman, and David McKenzie. World Bank Economic Review, 23(1): 31-55, February 2009.

  • • Other versions: Latest version (December 2007) | World Bank Policy Research Working Paper 4495 (January 2008)

• Mental health and poverty in developing countries: Revisiting the relationship. A response to Corrigal et al., joint with Jishnu Das, Jed Friedman, David McKenzie, and Kinnon Scott. Social Science and Medicine, 66(9): 2064-6, May 2008.

  • • Other versions: Latest version (November 2007)

• Land Titling and Rural Transition in Vietnam, joint with Lakshmi Iyer. Economic Development and Cultural Change, 56(3): 531-79, April 2008.

  • • Other versions: Latest version (May 2007) | World Bank Policy Research Working Paper 3120 (August 2003)

• Comparative Advantage, Demand for External Finance and Financial Development, joint with Andrei A. Levchenko. Journal of Financial Economics, 86(3): 796-834, December 2007.

  • • Other versions: Latest version (November 2006) | World Bank Policy Research Working Paper 3889 (April 2006)

• Mental Health and Poverty: Revisiting the Relationship, joint with Jishnu Das, Jed Friedman, David McKenzie, and Kinnon Scott. Social Science and Medicine, 65(3): 467-80, August 2007. 

  • • Other versions: Latest version (August 2006)

• A Reassessment of Conditional Cash Transfer Programs, joint with Jishnu Das and Berk Ozler. World Bank Research Observer, 20(1): 57-80, January 2005. 

  • • Other versions: Latest version (November 2004) | World Bank Policy Research Working Paper 3280 (April 2004)

Book Chapters, Reports and Other Research Publications

• World Development Report 2023: Migrants, Refugees, and Societies, joint with Xavier Devictor and Caglar Ozden (co-directors). The World Bank: Washington DC. April 2023

• Violence without Borders: The Internationalization of Crime and Conflict, joint with Faisal Baig, Daniel Garrote-Sanchez, Lakshmi Iyer, Chau Le, and Andrei Levchenko. World Bank Policy Research Report. The World Bank: Washington DC. June 2020

• Asylum Seekers in the European Union: Building the evidence, joint with Mohamed Abdel Jelil, Paul Andres Corral Rodas, Anais Dahmani Scuitti, Maria Davalos, Giorgia Demarchi, Neslihan Demirel, Rema Hanna, Deivy Houeix, Sara Lenehan, and Harriet Mugera. The World Bank: Washington DC. July 2018

  • • Overview (English) | Overview (French) | Overview (Greek)

• Middle East and North Africa Monitor: Economic and Social Inclusion to Prevent Violent Extremism, joint with Shanta Devarajan, Lili Mottaghi, Anne Brockmeyer, Clement Joubert, Kartika Bhatia, and Mohamed Abdel-Jelil. The World Bank: Washington DC. October 2016.

• Middle East and North Africa Monitor: Syria, Reconstruction for Peace, joint with Shanta Devarajan, Lili Mottaghi, and Mohamed Abdel-Jelil. The World Bank: Washington DC. April 2016.

• The Pirates of Somalia: Ending the Threat, Rebuilding a Nation, World Bank Africa Region Vice-Presidency, The World Bank: Washington DC. 2013

  • • Data: UNODC-WB Database on ransoms v0 (March 2015)

    • Outreach: Blog (November 2013) |CNBC Africa Power Lunch (April 2013) | TV5 Journal de l'Afrique (April 2013) | The Economist (April 2013) | Wall Street Journal (April 2013) | CNN (April 2013) | Le Monde (April 2013)

• Trade Insulation as Social Protection, joint with Andrei A. Levchenko and Martin Ravallion.

  • • in The Economics of Food Price Volatility, Jean-Paul Chavas, David Hummels, and Brian Wright (eds), University of Chicago Press. 2014.

    • Other versions: World Bank Policy Research Working Paper 6448 (May 2013)

• Mental Health in the Aftermath of Conflict, joint with Lakshmi Iyer.

  • • in The Oxford Handbook of the Economics of Peace and Conflict, Michelle R. Garfinkel and Stergios Skaperdas (eds.), Oxford. February 2012. 

    • Other versions: World Bank Policy Research Working Paper 5132 (November 2009)

• Capabilities, Opportunities, and Participation: Gender Equality and Development in the Middle-East and North-Africa Region, joint with Tara Vishwanath, Nga Nguyen, Thomas Walker, Gabriela Inchauste Comboni, and Nandini Krishnan. The World Bank: Washington DC. September 2011.

• Asymmetric Information

  • • in The Social Science Encyclopedia 2nd edition. Adam Kuper and Jessica Kuper (eds.),Routledge, London. October 2004. 

    • Other versions: Latest version (September 2003)