Smallholder agricultural systems, strongly dependent on water resources and investments in shared infrastructure, make a significant contribution to food security in developing countries. These communities are being increasingly integrated into the global economy and are exposed to new global climate-related risks that may affect their willingness to cooperate in community-level collective action problems. We performed field experiments on public goods with private and collective risks in 118 small-scale rice-producing communities in four countries.

Promotion and supporting the adoption of land management and conservation technologies (LMCTs) among poor farming households has been considered to improve crop yields as well as production technical efficiency (TE). This article compares production efficiency between adopters and nonadopters of LMCTs in Tanzania. Using national panel data, the study applied stochastic frontier model to estimate the TE of adopters and nonadopters. The findings show that adopters of LMCTs had a relatively significantly higher TE (0.73) than their nonadopter counterparts (0.69).

Concerns about food insecurity have grown in Sub-Saharan Africa due to rapidly growing population and food price volatility. Post-harvest Losses (PHL) reduction has been identified as a key component to complement efforts to address food security challenges and improve farm incomes, especially for the rural poor.

We use regression analysis on data from 208 districts over the period 1981–2009 to examine the impact of temperature and solar radiation (affected by pollution from aerosols) on wheat yields in India. We find that a 1 °C increase in average daily maximum and minimum temperatures tends to lower yields by 2–4% each. A 1% increase in solar radiation increases yields by nearly 1%. Yields are estimated to be about 5.2% lower than they would have been if temperatures had not increased during the study period.