1 Field Experiments in Developing Country Agriculture Alain de Janvry*, Elisabeth Sadoulet*, and Tavneet Suri** 1 July 2016 Abstract This chapter provides a review of the role of field experiments in answering research questions in agriculture that ultimately let us better understand how policy can improve productivity and farmer welfare in developing economies. We first review recent field experiments in this area, highlighting the contributions experiments have already made to this area of research. We then outline areas where experiments can further fill existing gaps in our knowledge on agriculture and how future experiments can address the specific complexities in agriculture. Keywords: agriculture, field experiments, developing economies JEL Codes: Q1, 013, C93 * University of California at Berkeley. ** MIT Sloan School of Management. 1 We are grateful to Shweta Bhogale, Erin Kelley, Gregory Lane and Eleanor Wiseman for excellent research assistance, and to Mushfiq Mobarak, Abhijit Banerjee and Esther Duflo for their reviews of the paper and suggestions for improvements. We also benefited from the review materials on field experiments in agriculture prepared by Craig McIntosh, Rachel Glennerster, Christopher Udry, Ben Jaques-Leslie, and Ellie Porter. Errors and shortcomings are our own. Published as: “Field Experiments in Developing Country Agriculture.” de Janvry, Alain, Elisabeth Sadoulet and Tavneet Suri. In Handbook of Field Experiments, Volume 2, edited by Esther Duflo and Abhijit Banerjee, 427-466. Amsterdam, Netherlands: Elsevier, 2017. DOI: 10.1016/bs.hefe.2016.08.002