OP 3.2.2: Impact evaluations of value chain-related interventions in RTB: cassava processin g

1. 80 Impact evaluation of upgrading cassava value chains through post-harvest engineering and processing research-for-development in sub-Saharan Africa J. Rusike, T. Abdoulaye, V. Manyong, A. Alene, O. Coulibaly

2. OP 3.2.2: Impact evaluations of value chain-related interventions in RTB: cassava processing • Conduct PIPA workshops, key informant interviews, and focus group discussion; review literature • RAVS protocols/questionnaires developed validated and implemented through Multinational-CGIAR Support to Agricultural Research for Development of Strategic Crops (SARD-SC) Project in Africa: DRC, Tanzania, Sierra Leone and Zambia • Also Nigeria (NRCRI) and Ghana (Kwame Nkrumah University) • Design, pretest and train enumerators • Carry out fabricator survey, processors and farm household surveys • Processor surveys (DRC in progress; Tanzania 119; Sierra 31; Zambia 30) • Household surveys (DRC 666; Tanzania 610; Sierra 643; Zambia 500)

3. OP 3.2.2: Impact evaluations of value chain-related interventions in RTB: cassava processing • Data entry, cleaning and analysis • Ongoing • Data base compiled from national data sources • Nationally disaggregated annual observations on area planted to cassava, yield, production • Release of new varieties, multiplication and distribution of clean disease-free cassava planting materials of improved varieties • Annual observations on cassava processing machinery fabricated and marketed • Monthly wholesale and retail prices on cassava fresh roots and processed products in major trading markets in rural and urban areas.

4. OP 3.2.4: Local capacity building for impact assessment of cassava value chain-related interventions • Conduct workshops, seminars, training courses • SARD-SC Launching Workshops (DRC, Tanzania, Sierra, Zambia) • Workshops on enhancing adoption of harmonized standards in Eastern and Southern Africa • Nigeria Cassava Transformation Agenda meetings • Nigeria Federal Ministry of Agriculture and Rural Development/IITA training of Master Bakers

5. OP 3.2.4: Local capacity building for impact assessment of cassava value chain-related interventions • Carry out stakeholder workshops and policy dialogue fora meetings • Root and Tuber Crops Innovation Platform meetings • Nigeria Cassava Transformation Agenda • Sierra Leone WFP P4P procurement of gari & mFarms platform for linking processors to markets • Conduct postgraduate student training • MSc students (1 Ghana; 2 Tanzania)

6. OC 3.2.1: Methods and guidelines from CRP2 used to improve value chain-related interventions • Impact evaluation • Evidence of impact of expanding markets (high quality gari; HQCF; starch; sweeteners; ethanol; dried chips) and development and dissemination of point intervention to processing: Nigeria’s Cassava Agricultural Transformation Agenda; DRC’s Presidential Initiative; Malawi PI; Tanzania’s MUVI projects; Sierra Leone WFP P4P purchases of gari • Best practice methods for increasing impacts: nucleus farm-outgrower schemes; planting materials supply • Policies for scaling up through private sector change agents (e.g. nucleus farmers, processors, replicable contracts)

7. OC 3.2.1: Methods and guidelines from CRP2 used to improve value chain-related interventions • Local capacity building • Design for impact evaluation using RCTs/quasi-experimental methods (DiD): SARD-SC • Local, national, regional Cassava Innovation Platforms • Established in DRC, Sierra Leone, Tanzania, Zambia (Ghana, Nigeria, Malawi, Mozambique) • MSc. Students theses • Ghana, Tanzania

8. Linkages with other CRPs • Roots, Tubers and Bananas CRP • Priority Setting: local level studies: refine the estimates of impacts of research options. • Flagship: Raising incomes and improving the health and safety at small and medium cassava production centers, especially for rural women • Humidtropics SRT2 & 3: • Develop tools and methods for Policy, Institutions and Markets (PIM) developed for the Action Areas • Monitoring - evaluation - impact assessment of r4d platforms

9. Tool’s progress • Cassava processing R4D impact on fabricator, processor and farm household level outcomes: Nigeria • Propensity score-based inverse probability of treatment weighting and duration and regression modelling using IPW weights; sensitivity testing for unobservables • Global, regional and local drivers of change in cassava value chains in selected countries in Africa: Implications for upgrading smallholder system: 12th International Symposium of the International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), Accra, Ghana, 30 Sep- 5 Oct 2013 • value chain framework; cointegrationand error-correction modeling(globalization, integration); and ARMAX (impact of varieties on supply response of farmers)

10. Next steps: deliverables • Write up and reporting: Document changes under way in structure and institutions and impacts (context) • Validate tool: quasi-experimental methods (IPW and duration for cassava processing; time series cointegration and error correction model to test hypotheses of liberalization and globalization and integration and ARMAX to test hypotheses of causality of varieties on supply response • Identify issues, best practices and policies • Publish communicate results