The article examines the effect of membership in farmer groups (MFG) on adoption lag of agricultural technologies and farm performance in Burundi, the Democratic Republic of Congo and Rwanda. We use duration and stochastic production frontier models on farm household data. We find that the longer the duration of MFG, the shorter the adoption lag and much more so if combined with extension service delivery. Farmer groups function as an important mechanism for improving farm productivity through reduced technical inefficiency in input use. We discuss policy implications under which farmer groups are a useful channel to reduce adoption lag, and the means through which improved farm performance can be achieved.JEL classifications: O12, Q12, Q16

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Background: This study investigated consumer demand heterogeneity and valuation of a processed bean product-"precooked beans" with substantially reduced cooking time. Common bean is the most important source of protein for low-and middle-income households in Uganda. Its consumption is, however, constrained by long cooking time, high cooking energy and water requirements. As consumption dynamics change due to a rapid expansion of urban populations, rising incomes and high costs of energy, demand for fast-cooking processed foods is rising. An affordable, on-the-shelf bean product that requires less time, fuel and water to cook is thus inevitable.Methods: A choice experiment was used to elicit consumer choices and willingness to pay for precooked beans. Data used were collected from 558 households from urban, peri-urban and rural parts of central Uganda and analyzed using a latent class model which is suitable when consumer preferences for product attributes are heterogeneous. Results:Study results revealed three homogeneous consumer segments with one accounting for 44.3% comprising precooked bean enthusiasts. Consumers derive high utility from a processed bean product with improved nutrition quality, reduced cooking time and hence save water and fuel. The demand for the processed bean is driven by cost saving and preference for convenience, which are reflected in willingness to pay a premium to consume it. Heterogeneity in attribute demand is explained by sex and education of the respondents, volumes of beans consumed, location and sufficiency in own bean supply. Conclusions:Our findings suggest that exploring avenues for nutritionally enhancing while optimizing processing protocols to make precooked beans affordable will increase consumer demand. These results have implications for market targeting, product design and pricing of precooked beans.

This paper examines the nature and determinants of coordination mechanisms used in the Kenyan fresh milk supply chains, using recent survey data of market participants from Nakuru and Nyandarua districts in Kenya. Three main contractual arrangements are observed in the fresh milk supply chain. These include spot markets, verbal contracts and written contracts. The empirical results indicate that though written contracts are sparingly used in the milk transactions, milk producers are more likely to adopt such contracts compared to traders. The results also show that location of producer, source of market information, distance to markets, travel time to buyers or suppliers, gender of operator, and presence or absence of enforceable contracts significantly influence the type of coordination mechanism used in both producer-buyer and retailer-seller transactions and travel time to milk suppliers. I n Sub-Saharan Africa, structural adjustment programs have resulted in reduced levels of activity by marketing parastatals and lower levels of intervention by the state in food markets to improve efficiency of marketing services. However, smallholders still find it difficult to participate in markets because of a range of constraints and barriers that reduce the incentives for participation. In particular, inadequate access to market information needed to enter new activities that structural change may have rendered profitable remains a major constraint for smallholders.These constraints often result in high transactions costs for farmers seeking to sell in distant markets. While an extensive body of theoretical and descriptive literature on transaction costs exists, few empirical studies have examined the role of transaction costs in market transactions in developing countries (Goetz;

Background: Common bean one of the grain legumes that was traditionally considered a subsistence crop and therefore a woman's crop in Uganda was prioritized for commercialization. This has transformed the crop from being a subsistence crop (food security crop) to a commercial crop with more men engaged in its production. Little is known about the possibility of gender conflicts in production activities as the crop finds market. Methods:The study uses gender-disaggregated survey data from 500 men and 625 women in central Uganda. Both bivariate and multivariate methods were used to access the notion of bean being a women's crop based on gender participation intensities (a pairwise t test and Tobit regression model).Results: Seventy-three percent male-headed and 87% female-headed households had membership in farmers groups. Bean crop was majorly owned by women. Seventy-five percent of the studied bean plots were intercropped with other crops. On average, both men and women operated at one bean plot per season estimated. Winnowing (4.26), post-harvest handling and storage (4.25), sorting (4.22), planting (4.04) and weeding (4.00) were the five top most activities that rural women heavily participated in. The following are the top most five activities that men participated in: site selection (3.94), spraying against pests and diseases (3.81), bush clearing (3.77), fertilizer application (3.73) and harvesting beans (3.73). Bean consumption (1.3%), marketability (17.5%), distance to plot (8.1%), education (1.3%) and color (18.1%) had significant influence on women participation intensities. Household size (5.8%), farming as primary occupation (42.7%) and bean color (30.8%) had significant influence on men bean participation intensities. Conclusions:The study revealed there was significantly no bean production activity that was purely done by only men or only done by women. Thus, bean cannot be classified as a women's crop based on participation intensities since men offered support in a number of activities. In order to close the gender gap in bean production, there is need to target both men and women with gendered interventions and address issues of traditional norms.