Since June 2017, Giel Ton (1963) works at the Institute of Development Studies and as Director of the Centre for Development Impact. He specialises in the design of mixed-methods impact evaluations in agricultural value chains and private-sector development. He favours mixed methods research designs, where in-depth qualitative interviews are combined with survey data collection.

Between 2005 and 2017, Giel worked for Wageningen Economic Research as a Senior Researcher on projects relating to business training, contract farming, export promotion and certification schemes. In 2017, he finished a meta-analysis on the effectiveness of contract farming for smallholder income for 3ie and the Campbell Collaboration, together with Ghent University. Giel coordinated the IFAD-funded ESFIM-programme, Empowering Smallholder Farmers in Markets implemented by Agrinatura (WUR, CIRAD and NRI). He was also leading the PRIME project, Pioneering Real-time Monitoring and Evaluation in small and medium enterprises to assess the impact of the Centre for the Promotion of Imports (CBI) and Netherlands Senior Experts (PUM).

Before, he worked in a Nicaragua on an agricultural innovation programme for the regional farmer union (1989-1996) and in Bolivia, as policy analyst at the national platform of economic farmer organisations CIOEC (1999-2004) to create an enabling environment for smallholder inclusion in markets.

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