(with Ousmane Badiane, Julia Collins, Yasuo Fujita, David Laborde, Will Martin, Rob Vos and Futoshi Yamasuchi). (2019). Sustainable Prevention of Food Crises in Sub-Saharan Africa. T20 Japan: Cooperation with Africa Policy Brief.

(with Luciana Delgado, Monica Schuster, Geetha Sethi, Eduardo Nakasone and Valeria Piñeiro). (2018). Clarifying the problem of food loss and waste to improve food and nutrition security. T20 Argentina: Food Security and Sustainable Development Task Force Brief.

(with J. Pender). (2018). Economic Impacts, Costs, and Benefits of Infrastructure Investment – Review of the Literature. USDA Economic Research Service (ERS) and Farm Foundation: Economic Returns to Rural Infrastructure Investment Issue Report.

(with Manuel Hernandez). (2018). Promoting competition in the fertilizer industry in Africa: A global and local approach. IFPRI Issue Brief. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Paul Dorosh and Adam Kennedy). (2016). El Niño and cereal production shortfalls: Policies for resilience and food security in 2016 and beyond. IFPRI Policy Brief. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Shenggen Fan and Headey). (2011). Urgent Action Needed to Prevent Recurring Food Crises. IFPRI Policy Brief 16. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Manuel Hernandez and Miguel Robles). (2011). Beyond the Numbers. How Urban Households in Central America Responded to the Recent Global Crisis. IFPRI Issues Brief 67. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Ruth Vargas-Hill). (2010). Innovations on Insuring the Poor. 2020 Focus Brief 17. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Joachim von Braun). (2009). Grappling with grain prices. A three-pronged grain reserve system could protect poor countries from volatile food prices and shocks, and help respond to food emergencies. OECD Observer, October 2009.

(with Joachim von Braun). (2009). Implementing the Physical and Virtual Food Reserves to Protect the Poor and Prevent Market Failure. IFPRI policy Brief No.10. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Joachim von Braun and Miguel Robles). (2009). When Speculation Matters. IFPRI Issues Brief No. 57. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Joachim von Braun). (2008). Physical and Virtual Global Food Reserves to Protect the Poor and Prevent Market Failure. IFPRI Policy Brief No.4. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Joachim von Braun, Akhter Ahmed, Kwadwo Asenso-Okyere, Shenggen Fan, Ashok Gulati, John Hoddinott, Rajul Pandya-Lorch, Mark W. Rosegrant, Marie Ruel, Teunis van Rheenen, and Klaus von Grebmer). (2008). The What, Who, and How of Proposed Policy Actions. IFPRI Policy Brief. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Joachim von Braun). (2005). Information and Communication Technologies for the Poor. IFPRI Policy Brief. Washington, D.C.: International Food Policy Research Institute (IFPRI).

(with Shyamal Chowdhury). (2004). Infrastructure for Africa: Overcoming Barriers to Development. Policy Brief submitted for the Africa 2020 Conference, Kampala.

(with Ashok Gulati). (2004). Connecting Small holders to Markets: Role of Infrastructure and Institutions. USAID Policy Brief.