To promote development, there is increasing need for activities and policies which generate and diversify income in rural areas. The starch industry in Viet Nam provides a good example of rural industrialization whereby low-value agricultural commodities such as cassava and canna are processed into high-value commodities such as starch to be used in a variety of food and non-food industries. Though this sector is relatively small, it has a high potential in terms of demand growth, poverty reduction, and income diversification in rural areas, particularly the less favored ones. The project had five main objectives: 1) to characterize the production and consumption of starch in Viet Nam; 2) to describe the marketing channels for the starch distribution system; 3) to identify the key policy issues related to the promotion of the starch industry as a strategy for rural industrialization; 4) to analyze the effects of alternative policy options for accelerating growth of the starch industry; and 5) to identify priorities for further research. The study found that growth in the starch industry has been dramatic. Over the past 10 years, the share of cassava used to process starch has grown about 250 percent, while average investment has increased by 78 percent each year. Most participants are new entrants (62 percent have entered since 1988), while industrial capacity has grown 8-fold between 1994 and 1997 alone. Moreover, the industry has strong linkages with rural development as many rural households become involved in processing through small enterprises. Rural households working as starch processors make more than twice the income of the average rural household. In turn, the industry drives increased cassava production. However, the industry faces several constraints to greater productivity: low levels of technology adoption by small operators who comprise the majority of producers; limited access to credit; the high cost of raw materials; and environmental degradation, as starch residue pollutes local water supplies. Based on an econometric analysis of key policy alternatives, the following policies were judged the most sound: research and extension activities to increase raw material (e.g. cassava) yield at the farm level, and to raise the quality of starch to compete internationally through appropriate institutions; and an increase in credit access for capital equipment investment, particularly among small and medium scale enterprises. Post-Production Research Network of International Development Research Center (IDRC), December 1998.; Donor report submitted to the International Development Research Center. December 1998

Agrifood systems are facing significant challenges, science and innovation are key to shift the trajectory towards ensuring sustainability and resilience. Thus, scaling assumes a critical role in agricultural research for development (AR4D). Scaling consists of a continuous process in which innovations are tailored, used, and embedded into societal dynamics adapted to various contexts, aiming to create widespread positive impacts. This systematic literature review explores scaling within the context of AR4D, with a particular focus on the role of social capital. Using bibliometric and factor analysis methods, we identified the intellectual structure in the field of scaling, revealing the knowledge domains and disciplines that have determined their emergence and growth as a scientific discipline. Then, we analyzed the role of social capital in the scaling literature. Our results showed that the field of scaling is composed by four distinct literature clusters: the innovation and adoption of agricultural technology, the economics of technology adoption, sustainability in agricultural innovations, and the emergence of scaling as a research field. Disciplines such as sustainable agriculture, systemic thinking, technological transitions, and technology adoption have contributed to the development of the field. The results indicate that the explicit consideration of social capital in the scaling literature within AR4D is limited despite the importance of relationships, trust, and reciprocity values in the process of scaling. This study highlights the continuous growth and multidisciplinary nature of scaling as a research field in AR4D, reflecting its complexity. International agricultural research centers and universities from developed countries have significantly advanced this field, also underlying the importance of locally rooted, and participatory research. Future research on the creation, development, and strengthening of social capital in scaling processes can contribute foster intentional and responsible scaling of AR4D innovations.