Food insecurity and malnutrition are still major challenges for large proportions of households in Sub-Saharan Africa. The empirical literature on food demand, however, suggests mixed evidence on the roles of income and other socio-economic attributes on food demand. This study analyzes the food demand among households in Rwanda, based on nationally representative household expenditures and demographic (EICV4, 2013/14) survey data. The results show that poor households consume merely food containing higher carbohydrates and starches. Further, the study finds that the majority of rural households spend almost nothing on micronutrients from animal products, suggesting that effective targeted food policy interventions for poor and rural households may play an important role in reducing the incidence of malnutrition through improving food diets.

This special issue of Agricultural and Food Economics consists of four articles that were part of the scientific programme of the First SIDEA-SIEA Joint Conference, held in Bisceglie in September 2017. The conference afforded agricultural economists the opportunity to reflect on cooperative strategies to promote competitiveness of the agri-food supply chain, with a focus on environmental quality and social sustainability.The selected articles address these themes from different perspectives: those of firms, of consumers, and of policy makers, stressing that sustainability calls for the active participation of all of the actors. The case studies presented propose an effective interpretation of the strategies for value creation with respect to the challenges of climate change, food waste management, the development of marginal rural areas, and that of the fish sector.

This article analyzes the link between world prices and producer prices of rubber in Côte d’Ivoire. Using monthly data from 2006 to 2016, we gave special attention to structural breaks in the data and asymmetry in the transmission process. Empirical results validate the presence of two breaks in the data series, both in 2008 and 2011 corresponding to a general surge in commodity prices. A multivariate threshold vector error correction model (TVECM) allows us to test the presence of asymmetry. The results strongly support the linearity hypothesis against k-regime TVECM. From there, a linear VECM reveals that changes in rubber world prices are strongly transmitted to Ivorian producer prices. In case of a world price permanent decrease, this will be devastating for small producer incomes, since financial markets are essentially missing in those rural areas and switching costs for perennial crops are huge. Some recommendations are given to prevent such a crisis.

BackgroundThe agricultural sector both needs to reduce its impacts and adapt its food production system to cope with environmental constraints and climate changes. This special issue includes three selected papers presented at the 53rd annual Conference of the Italian Society of Agricultural Economics discussing the future of agriculture. The fil rouge linking the three papers is the issue of sustainability that nowadays influences the functioning of the food supply chain and the behavior of all actors involved in it, from producers to consumers.FindingsThe selected papers investigate the theme of sustainability by exploring strategies for the adoption of sustainable innovation in the food supply chain, developing a model that assesses the effect of climate changes on farm production, as well as evaluating consumer attitudes to wine attributes, including those related to “carbon footprint” and “winescape esthetic.”ConclusionsThe reading of these papers provides a multifaceted light on different dimensions linking future perspectives of sustainable agriculture between globalization and local market. Papers discuss issues, propose approaches, and show empirical findings that can be useful to fuel the debate about future agricultural policies and stimulate the development of research agendas.

In this paper, we study the relationship between environmental uncertainty and performance in the rice supply chain in the Ayeyarwaddy Region, Myanmar. Efficiency is one of the important performance indicators in both supply chain and agribusiness. In this regard, the objectives of the study are to identify the different sources of uncertainty perceived by the different actors in the supply chain, to measure the rice supply chain efficiency, and to study the impact of the environmental uncertainty on the supply chain efficiency. The data of 215 respondents is collected from the Ayeyarwaddy Region by using a purposive and stratified random sampling method, and we analyze this data via descriptive statistics, an exploratory factor analysis, data envelopment analysis (DEA), and Tobit regression analysis. The scores for the technical, pure, and scale efficiency show a very low performance of the rice supply chain in the Ayeyarwaddy Region resulting from the fact that most of the rice businesses are too small and need to expand their operating size. We found that this global rice supply chain performance is significantly impacted by the planning and control uncertainty and the climate uncertainty. Therefore, mitigation initiatives must be developed such as financial insurance mechanisms and extension services should be widespread. Both aim to improve the impact of the climate adverse conditions and to increase the efficiency of resource utilization in the supply chain. Moreover, the actors should organize themselves in cooperatives such that the scale of operations can be increased and information is captured and shared between different parties in the supply chain. This is crucial to operational control and planning because a higher quality of information input will increase the quality of managerial decision making.

Important sources of risk in agriculture are yield and price fluctuations caused by unpredictable and uncontrollable events, inducing income volatility and adding considerable complexity to farmers’ decisions. The literature suggests that these events could affect farmers’ risk aversion in decision making and justify their preferences for risk minimizing and safety-first survival, rather than a profit maximization strategy. The aim of this study is to test this hypothesis by using a quadratic programming in linearized version and the sumex utility function, which is representable as sum of products of polynomials and exponential (or “polynex”) functions to simulate risk aversion for specific traits of the E-V frontier (Nakamura, Mathematical Soc Sci 31:39–47, 1996). The linear approximation of the utility function is obtained with the MOTAD approach, consisting in the minimization of errors generated by total absolute deviations of gross income from the expected value (Hardaker et al. Rev Mark Agric Econ 59:9–22, 1991). This method allows different portfolio simulations to be run of selected cereal and oilseed crops as risky prospects, by varying the risk parametrically. The results obtained confirm the hypothesis that risk affects farmers’ decisions and that crop diversification is a viable strategy as a hedge against risk.

Over the last decades, economic, social, and environmental changes have profoundly affected citizen-consumer’s lifestyle and food habits. Current food habits encourage people either to eat more outside home or to a massive use of convenience foods. The consequence is the increasing rate of overweight and obesity through the population and in particular among children. The resulting social and environmental costs are huge. Indeed, it increases government health expenditure as well as environmental pollution due to the large amount of water, fertilizers, and chemicals involved in the production process. The study focuses on these issues aiming at uncovering the aspects able to encourage healthier and more responsible food habits. Specifically, it explores the effects of different parental characteristics on children’s food habits and lifestyle. The study findings reveal a positive effect of parental socio-demographic characteristics (i.e., education and occupation), diet awareness, and lifestyle on children’s food habits and lifestyle, offering practical insights for regulators on how to promote healthier and more sustainable food habits among children.

Agricultural price distortion which is the discrepancy between world market price of agricultural produce and price received by farmers as a result of market interventions by governments, either through subsidies or taxes or even trade protection systems, has received rare attention in the cocoa and coffee sub-sectors. This study examines the contribution of mobile phone technology in reducing price distortions in cocoa and coffee production. In addition, we tested stylized facts such as the development paradox, resource abundance, and group-size effect in agricultural price distortions literature. The findings suggest that access to mobile phones reduces the extent of price distortions. The effect of mobile phone usage on the extent of price distortion, the nominal rate of assistance, and relative price margin is conditional on internet connectivity. Whereas our results support the development paradox and group-size effect hypotheses, the resource abundance hypothesis is not supported. Based on our results, policies that seek to reduce the cost of telecommunication, increase competition in the telecommunication industry, and increase economic growth would go a long way to reduce price distortion in the cocoa and coffee industries.

Sustainable feed formulation (defined here as nutritional and economic feed optimization) is substantial in feed chain production from crop farmers to livestock producers. Diet formulation employing a static linear programming (LP) approach, which is widely used in trading firms and feed production facilities, does not allow for intertemporal flexibility. Our approach allows the interaction between feed components over time, considering the volatile global feed prices, thereby improving sustainability in feed formulation and feed availability. The objectives of this study were to (1) develop a multi-stage LP feed model, (2) demonstrate its potential use in broiler feeding, and (3) illustrate the impact of feed input price spread (variation) on the composition of broiler diets. Modeling resulted in reciprocal relationships between conventional feeds and byproducts at different rates. Based on the price spreads expressed as a percentage of DDGS (distiller’s dried grains with solubles) price compared to corn price, three positions of dietary switch were identified; corn-DDGS price spreads of higher than 94%, between 76 and 94%, and lower than 76% corresponding to limited/no inclusion, partial inclusion, and maximum replacement of corn by DDGS, respectively. Rapeseed meal inclusion was 4, 5, and 6% in the corn-based starter, grower, and finisher diets, respectively, and its potential to replace soybean meal was limited by its higher fiber content. Based on the simulated compound feed prices, the global broiler feed industry could gain 1.7 billion USD through improved resources planning.

The purpose of this paper is to identify the main factors affecting the consumption of avocado fruit among Italian consumers. In order to respond to the aim of the study, an empirical survey was conducted through the submission of an online questionnaire to 327 consumers. An ordered logit econometric model was adopted to examine the relationship among some explanatory variables and the frequency of consumption of avocado fruit. The findings of this study show that the consumption of avocado fruit is affected by different factors, including fruit consumption habit, neophilia attitudes, and various intrinsic and extrinsic quality attributes (credence attributes in particular). The study deals with a little explored topic; therefore, the findings contribute to fill the gap in the existent literature, inasmuch as they enrich the discussion on consumers’ preference for avocado fruit. However, further comparative research is clearly needed, as well as a larger research sample, to overcome limits to the external validity of the results and to investigate the analytical effort proposed in this article.