The effectiveness of agricultural certification in developing countries: A systematic review

Overall, there is limited and mixed evidence on the effects of CS on a range of intermediate and final socio-economic outcomes for agricultural producers and wage workers. There are positive effects on prices and income from the sale of produce is higher for certified farmers. However, workers' wages do not seem to benefit from the presence of CS and, further along the causal chain, we find no evidence that total household income improves with certification. The integrated synthesis of quantitative and qualitative studies shows that context matters substantially in all causal chains and multiple factors shape the effectiveness and causal mechanisms that link interventions associated with certification and the wellbeing of producers, workers and their families.