共查询到20条相似文献,搜索用时 31 毫秒
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This paper simulates how a doubling of food prices affects absolute poverty and the food‐price‐adjusted real income distribution. We assume unsubsidized world food prices in order to derive the cost of poverty deepening and poverty expansion. We also estimate the degree to which inequality increases if no measures are put in place to offset rising food prices. Both measures are vulnerability indicators useful for social policy planning. Our results show that low‐income countries experience dramatic increases in absolute poverty as a result of doubling food prices. Middle‐income countries experience the greatest decrease in absolute income, which contributes most to an increase in world income inequality. The paper estimates that the global dollar value of the absolute poverty gap ($1.25/day) has the potential to increase by 400%, with poverty deepening accounting for two thirds of the increase. 相似文献
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Ali A.G. Ali 《Revue africaine de developpement》2000,12(2):221-232
Against the backdrop of a persistent food insecurity problem in Sudan which has prevailed since the mid 1970s, this paper makes use of the ordinary least squares (OLS) method of analysis to assess the performance of the national development strategies encapsulated in various medium‐term plans and programs between 1970/71 and 1992/93 with respect to achieving their objective of national self sufficiency in food production through both vertical and horizontal expansion in food production. An exponential function is used to estimate the trends in area, production, and productivity for three major staple crops, namely sorghum, wheat, and millet using annual time series data covering the period 1970–95. The results provide clear evidence that vertical expansion alone does not pay off in terms of output. Instead, policies should focus more on improving agricultural productivity via the introduction of new varieties and the application of technological packages. These policies must then be reinforced by efforts to improve infrastructure, including health and education, to pave the way for a positive supply response at lower costs. Experience has shown that food security, as a prelude to industrial growth is not likely to be achieved if agricultural productivity is not increased. Face à l’insécurité alimentaire persistante qui a prévalu au Soudan depuis le milieu des années 70, cette étude utilise la méthode des moindres carrés ordinaires pour évaluer la performance des stratégies nationales de développment. Celles‐ci sont consacrées par les différents plans et programmes à moyen terme appliqués entre 1970/71 et 1992/93 en vue de réaliser l’objectif d’autosuffisance alimentaire par l’expansion verticale et horizontale de la production alimentaire. Une fonction est utilisée pour estimer, par le biais de séries chronologiques annuelles couvrant la période 1970–1995, l’evolution des superficies, de la production et de la productivité des trois grandes cultures que sont le sorgho, le blé et le mil. Il ressort clairement des résultats que l’expansion verticale à elle seule ne permet pas d’augmenter les rendements. Les mesures devraient viser davantage à améliorer la productivité agricole en introduisant de nouvelles variétés et en appliquant des programmes technologiques. Ces mesures doivent ensuite à tre renforcées par des actions tendant à améliorer les infrastructures, notamment celles de santé et d’éducation, pour favoriser une réaction positive de l’offre à des coûts moins élevés. On sait par expérience que la sécurité alimentaire, en tant que prélude à la croissance industrielle, a peu de chances d’être réalisée si la productivité agricole n’est pas renforcée. 相似文献
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There is an extensive research literature on the effects of the Supplemental Nutrition Assistance Program (SNAP) on food‐related outcomes which has shown somewhat mixed results but generally favorable effects. However, most of the research has used data sets whose information on SNAP participation is gathered from responses on household surveys, and such responses are subject to reporting error. This study uses the National Household Food Acquisition and Purchase Survey data set to examine the effect of reporting error on food‐related outcomes, for that data set contains information on SNAP participation gathered from government administrative records. Our analysis shows that the degree of reporting error is small and has little effect on the estimated impact of participation in the SNAP program on food security, diet quality, and food spending. A supplemental analysis of the effect of school food programs likewise shows no difference in using survey or administrative data in the analysis. 相似文献
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There're no unhealthy food. There are unhealthy diets.“世上没有不健康的食物,只有不健康的食谱。”雀巢公司首席执行官Paul Bulcke曾这样说过。 相似文献
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Administrative data are considered the “gold standard” when measuring program participation, but little evidence exists on their potential problems or implications for econometric estimates. We explore these issues using the FoodAPS, a unique data set containing two different administrative measures of Supplemental Nutrition Assistance Program (SNAP) participation and a survey‐based measure. We document substantial ambiguity in the two administrative measures and show that they disagree with each other almost as often as they disagree with self‐reported participation. Estimated participation and misreporting rates can be meaningfully sensitive to choices made to resolve this ambiguity and disagreement. We explore sensitivity in regression estimates of the associations between SNAP and food insecurity, obesity, and the healthy eating index. The signs are unchanged across the three measures, and the estimates are mostly not statistically different from each other. However, there are some meaningful differences in the magnitudes and levels of statistical significance of the estimates. 相似文献
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Trevon D. Logan 《Explorations in Economic History》2006,43(3):527-545
Economic historians hypothesize that households in the nineteenth century substituted away from carbohydrates and fiber and towards protein and fat as their incomes rose. Anthropometric historians assert that there was increased nutrient intake without any nutritional substitution. I test these hypotheses using the 1888 Cost of Living Survey. I fail to reject the hypothesis that the income elasticity of fiber is greater than or equal to the income elasticities of protein, fat, or sugar—contrary to the nutritional substitution posited by economic historians. A food modified Engel curve reveals that the shares of carbohydrates, fat, and sugar in the diet vary with household income, but the shares of protein and fiber do not. I do find, however, that the share of protein from animal sources increases with household income. I also find that the diets of late nineteenth century industrial workers were surprisingly balanced by modern standards. 相似文献
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This piece is an introduction to the symposium on Food Access, Program Participation, and Health: Research using FoodAPS. The symposium includes articles presented at the National Bureau of Economic Research Conference on Food Security on December 7 and 8, 2017. The research herein was supported by the Economic Research Service of the U.S. Department of Agriculture, grant number 59‐5000‐5‐0115. The grant included funding to study the effects of various food assistance programs on outcomes, using data from the National Household Food Acquisition and Purchase Survey (FoodAPS). We describe the programs and the FoodAPS data, and point out highlights from the articles. 相似文献
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在重庆市中心解放碑商业区内,有一条小街——八一路,街上餐饮摊店鳞次栉比,几乎集中了重庆最有特色、最有名气的餐饮小吃,人称“好吃街”。每到节假日,街上食客涌动,人流如潮。 相似文献
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《Development Southern Africa》2006,23(4):541-560
Seasonal fluctuations in food consumption are a serious problem in rural Mozambique, where community isolation is high, and market integration, use of improved inputs, and access to off-farm income are low. This article uses household survey data to trace seasonal fluctuations in food consumption patterns and to analyse the ways households maintain access to calories. Significant substitution is observed between maize and cassava, and beans and green vegetables, over the production cycle. An analysis of the total expenditure elasticity of food groups reveals how precarious food security is in rural households in the poorest quintile. These households show near unitary expenditure elasticity for even the most basic staples of maize and cassava. The potential role of public policy in diminishing seasonal fluctuation in food consumption is explored using distance to road as an indicator of market access. The results show that distance to the nearest road has a significant effect on household food consumption patterns. 相似文献
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本文介绍了台湾食品工业发展的历程,分析了食品工业对提高农产品竞争力,促进农业结构升级产生的重大贡献.从加工与出口相互结合、重视科技和政府辅导以及注意政策协同性四个方面总结了台湾在发展食品加工业的积极经验,以资借鉴. 相似文献
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Wenyan Xu 《美中经济评论(英文版)》2004,3(1):58-66,81
Food safety issue has become competition point of international food and agricultural product trade. The consumers like green food because it is safe, high quality and nutrition, so the green food trade will be main trend of international food trade. At present, the green food production in China grows rapidly and faces the big chance to export. This paper expounds on the international competitive edge of green food according to the influence of food safety issue on the international trade. This paper also discusses the tactics of Chinese green food on the basis of analysis of the characteristics of international organic food market. 相似文献
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他的原名叫王竹丰,现在,人们只知道他叫毕麦--武陵山珍董事长.毕麦为了"要用毕生时间把武陵山珍做成中国的麦当劳",更改了自己的名字.他坚信,"麦当劳以其油炸食品风靡全球,武陵山珍也能走向世界." 相似文献
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Michael Rogan 《Development Southern Africa》2018,35(1):90-104
More than two decades since the advent of democracy in South Africa, the place of small-scale agriculture in rural development, poverty alleviation and food security remains ambiguous and highly contested. However, there is now some new evidence that official income poverty estimates in South Africa may be underestimating the contribution of rural, land-based livelihoods when measuring household well-being. This paper aims to explore this possibility further by identifying how household production activities are associated with improved food security among rural Eastern Cape households in the former homelands. The analysis is based on data from Statistics South Africa’s 2008/9 Living Conditions Survey and its annual General Household Surveys. In adopting a food poverty lens, the findings suggest that hunger levels are lower among farming households in the Eastern Cape even though a higher percentage of these households (relative to non-farming households) live below the national food poverty line. The paper concludes by discussing some implications for policy. 相似文献