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Registros recuperados: 38
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Economics of Biofortification AgEcon
Qaim, Matin; Stein, Alexander J.; Meenakshi, J.V..
Micronutrient malnutrition affects billions of people world-wide, causing serious health problems. Different micronutrient interventions are currently being used, but their overall coverage is relatively limited. Biofortification – that is, breeding staple food crops for higher micronutrient contents – has been proposed as a new agriculture-based approach. Yet, as biofortified crops are still under development, relatively little is known about their economic impacts and wider ramifications. In this article, the main factors that will influence their future success are discussed, and a methodology for economic impact assessment is presented, combining agricultural, nutrition, and health aspects. Ex ante studies from India and other developing countries...
Tipo: Conference Paper or Presentation Palavras-chave: Micronutrient malnutrition; Public health; Biofortification; Agricultural technology; Impact analysis; Developing countries; Food Consumption/Nutrition/Food Safety; I1; I3; O1; O3; Q1.
Ano: 2006 URL: http://purl.umn.edu/25584
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Farmer Participation in Supermarket Channels, Production Technology and Technical Efficiency: The Case of Vegetables in Kenya AgEcon
Rao, Elizaphan J.O.; Brümmer, Bernhard; Qaim, Matin.
Supermarkets are currently gaining ground in the agri-food systems of many developing countries. While recent research has analyzed income effects in the small farm sector, impacts on farming efficiency have hardly been studied. Productivity effects in previous studies are also estimated with respect to different frontiers. Using a survey of Kenyan vegetable growers and a meta-frontier approach, we control for self-selection using propensity score matching and show that participation in supermarket channels increases farm productivity by 35-38%. Effects on technical efficiency are, however, insignificant. Supermarket expansion therefore presents opportunities for realizing agricultural growth, thus enhancing poverty alleviation and rural development.
Tipo: Conference Paper or Presentation Palavras-chave: Supermarkets; Meta-frontier; Productivity; Meta-technology ratio; Sample selection; Kenya; Agribusiness; Community/Rural/Urban Development; International Development; Production Economics; Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/61190
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Health benefits of biofortification - an ex-ante analysis of iron-rich rice and wheat in India AgEcon
Stein, Alexander J.; Meenakshi, J.V.; Qaim, Matin; Nestel, Penelope; Sachdev, H.P.S.; Bhutta, Zulfiqar A..
Hunger is acknowledged to impose a heavy burden on humankind with severe negative health consequences. Micronutrient malnutrition, or "hidden hunger", is an even more widespread problem, to which economic development and income growth alone are not expected to provide a solution any time soon. Existing micronutrient interventions like pharmaceutical supplementation or industrial fortification have their limitations and can be complemented by a new approach: breeding food crops for higher micronutrient densities. Knowledge about the cost-effectiveness of this new tool, also termed biofortification, is scarce. In this study, a framework for economic impact analysis is developed, which is then used for evaluation of iron-rich rice and wheat in India. Health...
Tipo: Conference Paper or Presentation Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 2005 URL: http://purl.umn.edu/19468
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BT COTTON IN ARGENTINA: ANALYZING ADOPTION AND FARMERS' WILLINGNESS TO PAY AgEcon
Qaim, Matin; de Janvry, Alain.
Unlike several other countries, where Bt cotton is being rapidly adopted, in Argentina technology diffusion has been rather slow. Based on recent survey data, it is shown that the technology significantly reduces insecticide applications and increases yields; however, these advantages are curbed by the high price charged for genetically modified seeds. Using the contingent valuation method, it is shown that farmer's’ average willingness to pay for Bt cotton is less than half the actual market price. A lower price would not only increase benefits for cotton growers, but could also multiply the profits of the monopoly seed producer, thus resulting in a Pareto improvement. Implications of the sub-optimal pricing strategy are discussed.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/19710
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Vitamin A and iron consumption and the role of indigenous vegetables: A household level analysis in the Philippines AgEcon
Honicke, Mireille; Ecker, Olivier; Qaim, Matin; Weinberger, Katinka.
Micronutrient malnutrition is a public health problem in many regions of the developing world. Severe vitamin A and iron deficiencies are of particular concern due to their high prevalence and their serious, multiple health effects on humans. This paper examines dietary patterns and nutrient intakes, as well as their socioeconomic determinants among households in the Philippines. Since promotion of indigenous vegetables is often considered as an avenue to reduce micronutrient malnutrition, special emphasis is placed on analyzing the contribution of this particular food group to household vitamin A and iron intakes. We use a sample consisting of 172 resource-poor households located in peri-urban areas of Laguna Province. A 24-hour food consumption recall...
Tipo: Working or Discussion Paper Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.
Ano: 2006 URL: http://purl.umn.edu/8533
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Pesticide Reduction Sustainability of Bt Technology in India AgEcon
Krishna, Vijesh V.; Qaim, Matin.
The primary focus of the study is the changes that occurred in the pesticide-use structure of cotton production sector of India, owing to the diffusion of Bacillus thuringiensis (Bt) technology. Studies from different countries show that transgenic Bt crops can reduce chemical pesticide use with positive economic, environmental, and health effects. However, most of these studies build on cross-section survey data, so that longer term effects are uncertain. Bt resistance and secondary pest outbreaks may potentially reduce or eliminate the benefits over time, especially in developing countries where refuge strategies are often not implemented. Here, data from a unique panel survey of cotton farmers, conducted in India between 2002 and 2008, show that the Bt...
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011 URL: http://purl.umn.edu/114696
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Rolle der agrarökonomischen Forschung für Armutsbekämpfung in Entwicklungsländern AgEcon
Brümmer, Bernhard; von Cramon-Taubadel, Stephan; Qaim, Matin.
Tipo: Journal Article Palavras-chave: Food Security and Poverty; International Development.
Ano: 2008 URL: http://purl.umn.edu/97698
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Effects of Bt Cotton in India During the First Five Years of Adoption AgEcon
Sadashivappa, Prakash; Qaim, Matin.
While previous research has analyzed the impacts of Bt cotton in India, most available studies are based on one or two years of data only. We analyze the technology’s performance over the first five years of adoption, using panel data with three rounds of observations. On average, Bt adopting farmers realize pesticide reductions of about 40%, and yield advantages of 30-40%. Profit gains are in a magnitude of US $60 per acre. These benefits have been sustainable over time. Farmers’ satisfaction is reflected in a high willingness to pay for Bt seeds. Nonetheless, in 2006 Indian state governments decided to establish price caps at levels much lower than what companies had charged before. This intervention has further increased farmers’ profits, but the impact...
Tipo: Journal Article Palavras-chave: Biotechnology; Bt cotton; Genetically modified crops; Farm survey; India; Seed markets; Technology adoption; Willingness to pay (WTP); Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; O32; O33; Q16; Q55; Q58.
Ano: 2009 URL: http://purl.umn.edu/49947
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Transgenic technology adoption and on-farm varietal diversity AgEcon
Krishna, Vijesh V.; Zilberman, David; Qaim, Matin.
Transgenic pest-resistant varieties are hypothesized to reduce farmers’ demand for on-farm diversity through an act of substitution, as both serve as production risk reducing instruments. This adverse agro-biodiversity impact of technology adoption might be partially counteracted by an expanding seed sector, supplying a large number of transgenic varieties. The case of Bt cotton in India is taken for empirical illustration. The production function analyses show that both Bt technology and on-farm varietal diversity enhance yield, while reducing the production risk. With few Bt varieties available in the first years, technology adoption entailed a reduction in on-farm varietal diversity. This effect, however, was partially offset by more Bt varieties...
Tipo: Conference Paper or Presentation Palavras-chave: Agro-biodiversity; Bt cotton; India; Production risk analysis.; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Production Economics; Productivity Analysis; Risk and Uncertainty.
Ano: 2009 URL: http://purl.umn.edu/51750
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Understanding the adoption of systemic innovations in smallholder agriculture: the System of Rice Intensification (SRI) in Timor Leste AgEcon
Noltze, Martin; Schwarze, Stefan; Qaim, Matin.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Farm Management.
Ano: 2011 URL: http://purl.umn.edu/114604
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Supply chain differentiation, contract agriculture, and farmers’ marketing preferences: the case of sweet pepper in Thailand AgEcon
Schipmann, Christin; Qaim, Matin.
There is an emerging body of literature analyzing how smallholder farmers in developing countries can be linked to modern supply chains. However, most of the available studies concentrate on farm and farmer characteristics, failing to capture details of institutional arrangements between farmers and traders. Moreover, farmers’ preferences have rarely been considered. Here, we address these gaps by analyzing different market channels for sweet pepper in Thailand. Using data from a survey and choice experiment with farmers, we find that there is a general preference for marketing options that do not involve a contract. Additional provision of inputs and credit can increase the attractiveness of contracts. Yet, the most important factor for farmers is to...
Tipo: Working or Discussion Paper Palavras-chave: Choice experiment; Contract design; Farmers’ stated preferences; Modern agricultural supply chains; Thailand; Community/Rural/Urban Development; Institutional and Behavioral Economics; International Development; L14; O31; Q12; Q13.
Ano: 2011 URL: http://purl.umn.edu/108349
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Pricing, Distribution and Adoption of Genetically Modified Seeds under Alternative Information Regimes AgEcon
Basu, Arnab K.; Qaim, Matin.
This paper considers genetically modified (GM) seed adoption decisions by farmers in a developing country under two alternative information regimes (with and without perfect information regarding production conditions) that allows the monopolist producer of GM seeds to either practice perfect discrimination or uniform pricing. Under each regime we analyze two scenarios: when the government can and cannot credibly commit to the announced form of welfare enhancing intervention in the domestic seed market. We show that the optimal policy under either information regime is to subsidize the price of conventional seeds. The optimal size of the conventional seed subsidy depends systematically, in turn, on the (i) marginal cost of GM and conventional seeds, (ii)...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries; Demand and Price Analysis.
Ano: 2007 URL: http://purl.umn.edu/7115
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Potential Impacts of Iron Biofortification in India AgEcon
Stein, Alexander J.; Qaim, Matin; Meenakshi, J.V.; Nestel, Penelope; Sachdev, H.P.S.; Bhutta, Zulfiqar A..
Iron deficiency is a widespread nutritional problem in developing countries, causing impaired physical activity and cognitive development, as well as maternal mortality. Although food fortification and supplementation programmes have been effective in some countries, their overall success remains limited. Biofortification, that is, breeding crops for higher micronutrient content, is a relatively new approach. We propose a methodology for ex-ante impact assessment of iron biofortification, which builds on disability-adjusted life years (DALYs) and a large household data set. Our analysis of iron-rich rice and wheat in India indicates sizeable potential health benefits. The cost-effectiveness of iron biofortification compares favourably with other...
Tipo: Working or Discussion Paper Palavras-chave: Biofortification; Plant breeding; Iron deficiency anaemia; Health benefits; DALYs; Cost-effectiveness; Cost-benefit analysis; India; Research and Development/Tech Change/Emerging Technologies; I120; I180; I310; O150; O220; O330; Q180..
Ano: 2006 URL: http://purl.umn.edu/8536
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Farmer Participation in Supermarket Channels, Production Technology, and Efficiency: The Case of Vegetables in Kenya AgEcon
Rao, Elizaphan J.O.; Brümmer, Bernhard; Qaim, Matin.
Supermarkets are gaining ground in the agri-food systems of many developing countries. While recent research has analyzed income effects in the small farm sector, impacts on productivity and efficiency have hardly been studied. We use a meta-frontier approach and combine this with propensity score matching to estimate treatment effects among vegetable farmers in Kenya. Participation in supermarket channels increases farm productivity in terms of meta-technology ratios by 45%. We also find positive and significant impacts on technical efficiency and scale efficiency. Supermarket expansion therefore presents opportunities for agricultural growth in the small farm sector, which is crucial for poverty reduction in Africa.
Tipo: Working or Discussion Paper Palavras-chave: Supermarkets; Technical efficiency; Scale efficiency; Meta-frontier; Meta-technology ratio; Sample selection; Kenya; International Development; Marketing; Production Economics; Productivity Analysis; D24; L23; O12; Q12; Q16.
Ano: 2011 URL: http://purl.umn.edu/113508
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Modern food retailers and traditional markets in developing countries: Comparing quality, prices, and competition strategies in Thailand AgEcon
Schipmann, Christin; Qaim, Matin.
Supermarkets and hypermarkets are expanding rapidly in many developing countries. While consequences for farmers and consumers were analyzed recently, little is known about the implications for traditional retail formats such as wet markets. Using data from a market survey in Thailand and hedonic regression models, we analyze quality and prices for fresh vegetables from different retail outlets. Compared to wet markets, modern retailers sell higher quality at higher prices, indicating that they are primarily targeting better-off consumers. Hence, they are not directly competing for the same market segments. Yet there are signs that modern and traditional markets will gradually converge.
Tipo: Working or Discussion Paper Palavras-chave: Supermarkets; Modern retailers; Traditional wet markets; Product quality; Vegetables; Thailand; Agribusiness; Agricultural and Food Policy; Demand and Price Analysis; C21; L15; Q13.
Ano: 2011 URL: http://purl.umn.edu/108348
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PROJECTING THE BENEFITS OF GOLDEN RICE IN THE PHILIPPINES AgEcon
Zimmermann, Roukayatou; Qaim, Matin.
Golden Rice has been genetically engineered to produce beta-carotene in the endosperm of the grain. It could improve the vitamin A status of deficient food consumers, especially women and children in the developing world. This paper analyses the potential impacts in a Philippine context. Since the technology is still at the stage of R&D, benefits are simulated within a scenario approach. The health effects are quantified using the methodology of disability-adjusted life years (DALYs). Golden Rice will not completely eliminate the problems of vitamin A deficiency, such as blindness or increased mortality rates. So it should be seen as a complement rather than a substitute for alternative interventions. Yet, the technology will reduce related health...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 2002 URL: http://purl.umn.edu/18753
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Gender, Agricultural Commercialization, and Collective Action in Kenya AgEcon
Fischer, Elisabeth; Qaim, Matin.
With the commercialization of agriculture, women are increasingly disadvantaged because of persistent gender-disparities in access to productive resources. Farmer collective action that intends to improve smallholder access to markets and technology could potentially accelerate this trend. Here, we use survey data of small-scale banana producers in Kenya to investigate the gender implications of recently established farmer groups. Traditionally, banana has been a women’s crop in Kenya. Our results confirm that the groups contribute to increasing male control over banana. While male control over banana revenues does not affect household food security, it has a negative marginal effect on dietary quality. We demonstrate that the negative gender implications...
Tipo: Working Paper Palavras-chave: Gender; Collective action; Market access; Agricultural technology; Household food security and nutrition; Kenya; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Institutional and Behavioral Economics; International Development; Research and Development/Tech Change/Emerging Technologies; D71; J16; O12; O13; O31; Q13.
Ano: 2012 URL: http://purl.umn.edu/121229
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Changing Consumer Buying Habits in Developing Countries: A Disaggregate Demand Analysis for Fruits and Vegetables in Vietnam AgEcon
Mergenthaler, Marcus; Qaim, Matin; Weinberger, Katinka.
Food systems in developing countries are currently undergoing a rapid transformation, with important implications for local farmers, wholesalers, and retailers. While supply side aspects of this transformation have been analyzed previously, issues of consumer demand have received much less attention. This paper analyzes changing consumption habits for fresh fruits and vegetables in Vietnam, using household survey data and a demand systems approach. Demand for products from modern supply chains – particularly modern retailers and non-traditional imports – is highly income elastic. Also, supermarket expansion impacts on consumer demand. This implies a continued restructuring of the food sector in the further process of economic development.
Tipo: Conference Paper or Presentation Palavras-chave: Transformation of food systems; Supermarkets; Food safety; Non-traditional imports; South-East Asia; Vietnam; Demand and Price Analysis.
Ano: 2007 URL: http://purl.umn.edu/9878
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Potential Impacts of Golden Rice on Public Health in India AgEcon
Stein, Alexander J.; Sachdev, H.P.S.; Qaim, Matin.
Vitamin A deficiency (VAD) affects millions of people world-wide, causing serious health problems. Golden Rice (GR), which has been genetically engineered to produce beta-carotene, is being proposed as a remedy. While this new technology has aroused controversial debates, its nutritional impact and cost-effectiveness remain unclear. We determine the current burden of VAD in India from a public health perspective,and simulate the potential alleviating impact of GR using representative household food consumption data. Given broad public support, GR could more than halve the overall burden of VAD. Juxtaposing health benefits and overall costs suggests that GR is very costeffective.
Tipo: Conference Paper or Presentation Palavras-chave: Golden Rice; Vitamin A deficiency; Biofortification; Genetic engineering; DALYs; Cost-effectiveness analysis; India; Crop Production/Industries; Health Economics and Policy; I0; I3; Q16; Q18.
Ano: 2006 URL: http://purl.umn.edu/25381
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The supermarket revolution and impacts on agricultural labor markets: Empirical evidence from Kenya AgEcon
Rao, Elizaphan J.O.; Qaim, Matin.
Many developing countries are currently experiencing a rapid expansion of supermarkets. New supermarket procurement systems could have important implications for farming and wider rural development. While previous studies have analyzed farm profit and income effects, possible employment effects have received much less attention. Building on data from a recent survey of vegetable farmers in Kenya, in this article a double-hurdle model of hired labor use is developed and estimated. Farmer participation in supermarket channels increases the likelihood of hiring labor by 13% and overall demand for hired labor by 38%. A gender disaggregation shows that positive employment effects are especially pronounced for female hired labor. Given that agricultural wage...
Tipo: Working or Discussion Paper Palavras-chave: Supermarkets; Off-farm income; Hired labor; Double-hurdle model; Kenya; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Labor and Human Capital; Land Economics/Use; Livestock Production/Industries; Productivity Analysis; C34; Q12; Q13; J43.
Ano: 2011 URL: http://purl.umn.edu/107745
Registros recuperados: 38
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