Writing

Google Scholar

Working Papers

• Effects of economic and social incentives on bureaucratic quality: Experimental Evidence from Sierra Leone, with Macartan Humphreys, Salif Jaiteh, Niccolo Meriggi, Carlo Prato and Peter van der Windt

• Increasing local disease preparedness and surveillance capacity for global health security: a cluster-randomised control trial, with Kevin Grieco,  Macartan Humphreys, Salif Jaiteh, Niccolo Meriggi and Peter van der Windt, pre-print

• Local Economy effects of Large-Scale Agricultural Investments, with Paul Hofman, Esther Mokuwa and Paul Richards

• Distributional Consequences of Technology Seeding: Evidence from a Field Experiment in the Cong, with Paul Hofman, Jenn Larson and Peter van der Windt

• Conflict, Displacement and Overlapping Vulnerabilities: Understanding Risk Factors for Gender-Based Violence among Displaced Women in Eastern Democratic Republic of Congo, with Jocelyn TD Kelly,  Morgan Holmes,  Niamh Gibbons and Amani Matabaro, World Bank Policy Research Working Paper WPS9819
  
  

Publications

• Meriggi, N., et al. (2024), Last-mile delivery increases vaccine uptake in Sierra Leone, Nature, 627: 612–619

  • Media coverage: Nature News & Views, Nature News, IGC, WUR, Resource, Yale Insights, Yale Daily News

• Malan, M., et al. (2024) Evaluating the impacts of a large-scale voluntary REDD+ project in Sierra Leone, Nature Sustainability, 7: 120–129 

  • Media coverage: Mongabay

• Negede, B., et al. (2024) Does access to improved grain storage technology increase farmers’ welfare? Experimental evidence from maize farming in Ethiopia, Journal of Agricultural Economics, 75(1): 137-152

• Levine, M., et al. (2023) Gendered Disparities during the Covid-19 Crisis in Sierra Leone, AEA P&P, 113:  567-71, replication

• Aksunger, A, et al. (2023) COVID-19 and mental health in eight Low- and Middle-Income Countries: A prospective cohort study, PLoS Medicine, 20(4): e1004081, replication

• Fan, L., L., Dangui, M. Voors, S. Feng, W. Zhang, and N. Heerink (2023) Improving smallholders’ soil nutrient management: The effect of science and technology backyards in the North China Plain, China Agricultural Economic Review, 15(1): 134-158

• Treurniet M., and M. Voors (2022) Zinvolle en betrouwbare impactevaluaties, Bestuurskunde, (31) 4: 28-38, ungated

• Casey, K., R. Glennerster, E. Miguel and M.Voors (2022) Long Run Effects of Aid: Forecasts and Evidence from Sierra Leone, Economic Journal, online appendix, replication

  • NBER Working Paper 20079

• Quattrochi, G, G. Bisimwa, P. van der Windt and M. Voors (2022), Cash-like vouchers improve psychological well-being of vulnerable and displaced persons fleeing armed conflict, PNAS Nexus 1(3), pgac101

  • 3IE report, Best of UNICEF Research

• Mobarak, A., et al. (2022) End COVID-19 in Low and Middle Income Countries, Science 375 (6585): 1105-1110

• Arce, J.S.S., et al. (2021) COVID-19 Vaccine Acceptance and Hesitancy in Low and Middle Income Countries. Nature Medicine, 27, 1385–1394, replication

  • Policy brief: IGC

  • Media coverage: Nature Medicine editorial, EGAP COVID-19 Governance Series, Nederlands Dagblad, NOS Oog op Morgen (radio),  RTL4 News, Guardian

• Casey, K., R. Glennerster, E. Miguel and M. Voors (2021) Skill Versus Voice in Local Development, Review of Economics and Statistics, 1–46, replication

  • NBER Working Paper 25022

• Bowers, J., M. Voors and N. Ichino (2021) The Theory and Practice of Field Experiments: An Introduction from the EGAP Learning Days, opensource textbook, Now also in Spanish and French.

• Christensen, D, O. Dube, J. Haushofer, B. Siddiqi and M. Voors (2021), Healthcare Delivery during Crises: Experimental Evidence from Sierra Leone’s Ebola Outbreak, Quarterly Journal of Economics, 136 (2): 1145–1198, online appendix, replication

  • NBER Working Paper No. 27364, IPA policy brief and blog post, JPAL Policy Brief

  • Press coverage:  New York Times, NPR Hidden Brain, CBS Chicago, VoxEU, Resource

• Egger, D., et al.,  (2021). Falling Living Standards during the COVID-19 Crisis: Quantitative Evidence from Nine Developing Countries. Science Advances, 7, no. 6, eabe0997, replication

  • IPA Policy Brief,

  • Media coverage: Trouw, Nederlands Dagblad, NRC, LSE, SciDev, Scientific American, Resource, NPR

    • Reuters, IGC

• Christensen, D., O. Dube, J. Haushofer, B.Siddiqi and M. Voors (2020) Community-based Crisis Response: Evidence from Sierra Leone's Ebola Outbreak, American Economic Association Papers and Proceedings, 110: 260-64, replication

  • • The paper drawn as a cartoon by Dave Evans

• Bulte, E. and M. Voors (2020) Welke rol heeft de kleine Afrikaanse boer in de toekomst? In: I. de Zwarte and J. Candel (eds), Tien miljard monden: Hoe we de wereld gaan voeden in 2050, Prometheus Uitgeverij, replication

  • Media coverage: Trouw

• van der Windt, P. and M. Voors (2020) Traditional Leaders and the Ebola Epidemic, Journal of Politics, 82, replication

• Garcia, A., R. Lensink and M. Voors (2020) Does microcredit increase hope, aspirations and well-being? Evidence from Sierra Leone, World Development, 128: 104861

• Quattrochi, J., J. Aker, P. van der Windt and M. Voors (2020) Field Experiments and Humanitarian Assistance, World Development,  127: 104830

• Van der Windt, P., M. Humphreys, L. Medina. J. Timmons and M. Voors (2019) Civilian Attitudes towards Modern and Traditional Authority: Substitutes or Complements? Comparative Political Studies, 52, replication

• Wilebore, B. M. Voors, E. Bulte, D. Coomes and A. Kontoleon (2019) Unconditional Transfers and Tropical Deforestation. Experimental evidence from Sierra Leone, American Journal of Agricultural Economics, 101(3): 894–918, replication

• Bulte, E. P. Richards and M. Voors (2018) Institutions and Agrarian Development: A New Approach to West Africa, Palgrave Macmillan Publishers

• Sircar, N., T. Turley, P. van der Windt, M. Voors (2018) Know Your Neighbor: The Impact of Social Context on Fairness Behavior, PLoS ONE 13(4): e0194037 replication

• Voors, M., E. Bulte, A. Kontoleon, J. List and T. Turley. (2018) Chief for a Day! Participatory Development and Elite Capture in Sierra Leone, Management Science, 64, replication

• Voors, M (2018) Diagnostics and Field Experiments, Wageningen Journal of Life Sciences, 84: 80-84

• Berkhout, E., J. Bouma, N. Terzidis and M. Voors (2018) Supporting Local Institutions for Inclusive green growth: Developing an Evidence Gap Map, Wageningen Journal of Life Sciences, 84: 51-71

• Hofman, P., E. Bulte and M. Voors (2017) Trust in African Villages. Experimental Evidence from Rural Sierra Leone, in P. A. M. van Lange, B. Rockenbach, & T. Yamagishi (Eds) Trust in Social Dilemmas, Oxford University Press, paper and data

• Bulte, E, A. Kontoleon, J. List, T. Turley, and M. Voors, (2017) From Personalized Exchange Towards Anonymous Trade: A Field Experiment on the Workings of the Invisible Hand, Journal of Economic Behaviour and Organisation, 133: 313–330

• Voors, M., P. van der Windt, K. Papaioannou and E. Bulte (2017) Resources and Governance in Sierra Leone’s Civil War, Journal of Development Studies, 53: 278-294

• Bowers, J. and M Voors (2016) How to improve your relationship with your future self, Revista De Ciencia Política, 36: 829-848

• Voors, M., M. Demont and E. Bulte (2016) New Experiments in Agriculture, African Journal of Agricultural and Resource Economics 11: 1-7

• Cecchi, F., K. Leuveld and M. Voors (2016) Conflict Exposure and Competitiveness: Experimental Evidence from the Football Field in Sierra Leone, Economic Development and Cultural Change 64: 405-435

• Richards, P., J. Amara, M. Ferme, P. Kamara, E. Mokuwa, A. Sheriff, R. Suluku, M. Voors (2015) Social pathways for Ebola Virus Disease in rural Sierra Leone, and some implications for containment, PLoS Neglected Tropical Diseases 9(4): e0003567

• Voors, M.J. and E. Bulte (2014). Conflict and the Evolution of Institutions: Unbundling Institutions at the Local Level in Burundi, Journal of Peace Research, 51(4): 455-469, replication, appendix

• Chami, G., S. Ahnert, M. Voors and A. Kontoleon (2014). Social network analysis predicts health behaviours and self-reported health in African villages, PLoS ONE 9(7): e103500, replication

• Van de Grijspaarde, H., Voors, M.J., Bulte, E.H. and P. Richards (2013). Who believes in witches? Institutional flux in Sierra Leone, African Affairs, 112(446): 22 - 47.

• Voors, M.J., E.E.M. Nillesen, P. Verwimp, E.H. Bulte, B.W. Lensink and D.P. van Soest (2012). Violent Conflict and Behavior: a Field Experiment in Burundi, American Economic Review 102(2): 941–64, replication

  • Media coverage: Resource Magazine

• Voors, M., T. Turley, A. Kontoleon, E. Bulte and J. List (2012). Exploring whether behavior in context-free experiments is predictive of behavior in the field: Evidence from lab and field experiments in rural Sierra Leone, Economics Letters 114: 308–311

• Voors, M., T. Turley, A. Kontoleon, J. List, and E. Bulte (2011). Using Artefactual Field Experiments to Learn about the Incentives for Sustainable Forest Use in Developing Economies. American Economic Review (papers and proceedings) 101(3): 329–33

• Mokuwa, E, M. Voors, E. Bulte and P. Richards (2011). Peasant grievance and insurgency in Sierra Leone: Judicial serfdom as a driver of conflict. African Affairs, 110(440): 339-366

• Voors, M.J., Bulte, E.H. and R. Damania (2011). Higher Incomes and Corruption in Africa: Does a Virtuous Cycle exist?, Journal of African Economies 20(3): 395-418

• Voors, M.J. and M. D’Haese (2010). Smallholder dairy sheep production and market channel development: An institutional perspective of rural Former Yugoslav Republic of Macedonia. Journal of Dairy Science 93: 3869-3879

Media

• How is COVID-19 affecting gender inequality in low-income countries? Insights from Sierra Leone, Madison Levine, Niccolo Meriggi, Ahmed Mushfiq Mobarak, Vasudha Ramakrishna, and Maarten Voors,  LSE Blog, Economic Observatory

• Covid-19: What Africa Can Learn from Africa – Community Care Centres, Esther Yei Mokuwa, Foday Mamoud Kamara, Harro Maat, Susannah Mayhew, Paul Richards, Maarten Voors, African Arguments Blog

• Sierra Leone locked down early to contain COVID, but at a high price, Julio S. Solís Arce, Macartan Humphreys, Niccoló Meriggi, Maarten Voors and Emilie Yam, LSE Blog

• Making conflict sensitivitywork for food security, Food and Knowledge Platform, December 2017 

• Ontwikkelingshulp met een dobbelsteen. Resource Magazine, September 2013