Food Policy最新文献_第9页

Who cares about agriculture? Analyzing German parliamentary debates on agriculture and food with structural topic modeling 谁关心农业？用结构主题模型分析德国议会关于农业和食品的辩论

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102788

Philipp Mennig

{"title":"Who cares about agriculture? Analyzing German parliamentary debates on agriculture and food with structural topic modeling","authors":"Philipp Mennig","doi":"10.1016/j.foodpol.2024.102788","DOIUrl":"10.1016/j.foodpol.2024.102788","url":null,"abstract":"<div><div>This study employs structural topic modeling (STM) to quantitatively and for the first time analyze parliamentary debates on agriculture and food in the German Bundestag, focusing on the period leading up to the 2023 reform of the Common Agricultural Policy (CAP). Drawing on data from parliamentary speeches between January 2017 and June 2022, the research aims to understand whether and, if so, how key challenges of the agri-food sector identified by scientists are addressed by the parliamentarians. The paper thus adds empirical evidence concerning the debate on the uptake of research knowledge in politics. It does so by identifying key topics, tracking their temporal evolution, and assessing how party affiliation, constituency, gender, and age of the speakers influence discourse. The results reveal 24 distinct topics, spanning areas such as agriculture-environment interactions, rural development, animal welfare, and economic aspects of farming. Temporal analysis shows shifting priorities over time, with economic issues and sector transformation gaining prominence as CAP negotiations progress. Critically, the findings suggest that parliamentary discourse in Germany aligns with main challenges the agri-food sector faces, albeit with variations influenced by party affiliation, geographical and demographic factors. Overall, this study contributes to a better understanding of parliamentary engagement with agricultural issues and informs policy-making and voter decision-making processes. Its breakdown of how (frequently) certain issues were discussed reveals general trends, but also country-specific challenges, allowing for better comparative policy analysis.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102788"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Can changing the meal sequence in school canteens reduce vegetable food waste? A cluster randomized control trial 改变学校食堂的用餐顺序能否减少蔬菜食物浪费？一组随机对照试验

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102784

M. Petruzzelli , E. Iori , R. Ihle , M. Vittuari

{"title":"Can changing the meal sequence in school canteens reduce vegetable food waste? A cluster randomized control trial","authors":"M. Petruzzelli , E. Iori , R. Ihle , M. Vittuari","doi":"10.1016/j.foodpol.2024.102784","DOIUrl":"10.1016/j.foodpol.2024.102784","url":null,"abstract":"<div><div>School canteens are crucial drivers for stimulating sustainable eating habits of children in line with global sustainability objectives. Using a participatory approach, we co-design a choice-architecture intervention to assess whether inverting the sequence of Mediterranean lunch dishes served in school canteens is effective in reducing food waste. We implement a randomized control trial using 26 Italian schools, creating one of the largest and the most diverse samples achieved so far for such an experiment. Hence, our analysis yields evidence of internal and external validity far beyond existing interventions which consider only a few education institutions without random selection. A food mass flow analysis of the weighed prepared food, serving waste and plate waste per meal course suggests that in primary school canteens 29% of the lunch prepared gets wasted, i.e., 22,000 tons per year in Italy. Big catering providers are found to produce 23% more food waste. Prioritizing the vegetable side dish as first course has heterogeneous effects across school clusters changing the share of plate waste in total vegetable servings between −26 pp to + 32 pp. Also, the side dish plate waste depends on the type of vegetables served. Differences in lunch implementation and food and eating environments across schools appear to dominate the effectiveness of the intervention, hence, no treatment effect is found for the full sample. Upscaling of the dish reordering as a binding policy strategy for the entire regional territory is therefore not recommended. We conclude that policymakers and researchers should more often use citizen science to maximize benefits for society.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102784"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variations on the Thrifty Food Plan: Model diets that satisfy cost and nutrition constraints 节俭饮食计划的变化：满足成本和营养限制的饮食模型

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102781

Yiwen Zhao , Linlin Fan , Norbert L.W. Wilson , Angélica Valdés Valderrama , Parke Wilde

{"title":"Variations on the Thrifty Food Plan: Model diets that satisfy cost and nutrition constraints","authors":"Yiwen Zhao , Linlin Fan , Norbert L.W. Wilson , Angélica Valdés Valderrama , Parke Wilde","doi":"10.1016/j.foodpol.2024.102781","DOIUrl":"10.1016/j.foodpol.2024.102781","url":null,"abstract":"<div><div>The Supplemental Nutrition Assistance Program (SNAP) supports Americans with low incomes in acquiring adequate and healthful diets. The maximum SNAP benefit is based on the Thrifty Food Plan (TFP), the lowest cost of four U.S. Department of Agriculture (USDA) food plans. This paper uses optimization models and data replicating those used to reevaluate the TFP in August 2021. The optimization models solve for a food plan that is as similar as possible to the national average diet of healthy-eating Americans, while meeting nutrition requirements and cost constraints. This study’s objective was to investigate which model components are most important in driving the results and explore economic tradeoffs between food costs, nutrition quality, and consumer preferences in the U.S. food marketplace. The results showed that model food plans differed greatly from current consumption, with only 29 of 97 food categories being selected. The TFP algorithm was driven primarily by the cost and food group constraints rather than the objective function. The constraints with the highest Lagrangian semi-elasticities were, in order: the cost constraint, a food energy constraint, a vitamin E constraint, and particular food group constraints such as dairy. The implications for recommended SNAP benefit amounts depend on which constraints are used and on how much difference between the model diet and current consumption is considered acceptable. Relaxing certain food group constraints, such as dairy constraints, for nutrition goals would permit a lower cost target, while seeking model food plans more similar to current consumption would require a higher cost target.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102781"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How to incentivize peanut producers to adopt post-harvest aflatoxin control measures: A field experiment in Haiti 如何激励花生生产者采取收获后黄曲霉毒素控制措施：海地的田间试验

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102771

Phendy Jacques , Stevens Azima , Maurice Doyon

{"title":"How to incentivize peanut producers to adopt post-harvest aflatoxin control measures: A field experiment in Haiti","authors":"Phendy Jacques , Stevens Azima , Maurice Doyon","doi":"10.1016/j.foodpol.2024.102771","DOIUrl":"10.1016/j.foodpol.2024.102771","url":null,"abstract":"<div><div>Aflatoxin contamination in peanuts represents a significant public health concern in many developing countries, including Haiti, a low-income country. Although simple post-harvest mitigation measures exist, their adoption by Haitian farmers remains limited. This study assesses the willingness to accept (WTA) of peanut producers in Haiti to implement post-harvest measures, using a reversed Becker-DeGroot-Marschak (BDM) auction. It also tests the effect on WTA of a conditional market access. For one group the research project commits to purchase peanuts at a predetermined price if aflatoxin levels meet a maximum of 10 parts per billion, while another group receives unconditional market access at the same predetermined price. Moreover, Haitian supermarket consumers’ willingness to pay (WTP) a premium for a local peanut butter (mamba) certified to meet aflatoxin standards is explored. Results indicate that conditional market access generates higher WTA. Haitian supermarket consumers show strong interest in certified peanut butter, with a declared premium of 21.1 % over the market price of a 16-ounce jar of non-certified peanut butter. If we consider intermediary margins as high as 86 % of the final consumer price—well above the current 68 % reported in previous studies—as well as for a potential hypothetical bias as high as two thirds of the stated WTP, this premium is sufficient to incentivize Haitian peanut producers, measured by their observed WTA. Thus, a market solution to the aflatoxin problem in Haiti seems plausible for supermarket consumers.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102771"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diet quality and micronutrient intakes in nutritional value chains: A synthesis and suggestions for further research 营养价值链中的膳食质量与微量营养素摄入：综述及进一步研究建议

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102789

J.V. Meenakshi , Agnes Quisumbing

{"title":"Diet quality and micronutrient intakes in nutritional value chains: A synthesis and suggestions for further research","authors":"J.V. Meenakshi , Agnes Quisumbing","doi":"10.1016/j.foodpol.2024.102789","DOIUrl":"10.1016/j.foodpol.2024.102789","url":null,"abstract":"<div><div>This paper provides an overview of a virtual collection of papers analyzing drivers of diet quality and micronutrient intakes, and what has been learnt from various interventions to address micronutrient malnutrition, the contexts in which they succeed, and factors that affect their impact. We frame this using a micronutrient value chain, to highlight the important linkages from farm to plate. Our focus is on representative studies along this value chain in low and middle income countries where micronutrient malnutrition is most prevalent. The papers reviewed suggest that (a) both production diversity and market access work hand-in-hand to improve dietary quality. (b) However, the evidence on whether commercialization improves or reduces diet quality is context-specific and depends on whether markets exist for goods to be sold and micronutrient-rich foods purchased. (c) Not surprisingly, incomes and prices emerge as key factors affecting consumption decisions, with the cost of a healthy diet remaining unaffordable for many. Furthermore, the poor are most sensitive to changes in the relative prices of micronutrient-rich foods. (d) Also important is how food is consumed within the household: the review suggests that social context matters greatly in assessing relationships between women’s empowerment and diet quality. We then review several supply and demand side interventions, and note that while many are successful, not all are easily transferable, and thus may need adaptation to local contexts. We conclude with a set of ten areas that remain open for further research.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102789"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143103405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO2-driven crop comparative advantage and planting decision: Evidence from US cropland 二氧化碳驱动的作物比较优势和种植决策：来自美国农田的证据

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102782

Ziheng Liu

{"title":"CO2-driven crop comparative advantage and planting decision: Evidence from US cropland","authors":"Ziheng Liu","doi":"10.1016/j.foodpol.2024.102782","DOIUrl":"10.1016/j.foodpol.2024.102782","url":null,"abstract":"<div><div>In addition to the well-known per-acre yield benefits, elevated CO<sub>2</sub> also influences cropping patterns. An important characteristic of CO<sub>2</sub> fertilization is that C3 crops exhibit a more pronounced response to elevated CO<sub>2</sub> levels in comparison to C4 crops. Such differential responses of C3 and C4 crops to increasing CO<sub>2</sub> levels are likely to alter cropping patterns in favor of C3 crops, as CO<sub>2</sub> provides C3 crops with a comparative advantage. This study empirically investigates the CO<sub>2</sub> effects on the corn and soybean acreage, the most representative C4 and C3 crops, in the U.S. Employing an instrumental variable that exploits exogenous variation driven by wind, I find that a one-ppm rise in CO<sub>2</sub> significantly reduces the corn acreage by 1.19% and increases the soybean acreage by 1.51%. The CO<sub>2</sub>-driven shrinkage in corn acreage may involve switching to soybeans, spring wheat, and cotton, with CO<sub>2</sub>-driven soybean expansion achieved by replacing corn and sorghum. Neglecting the CO<sub>2</sub>-driven acreage shift would lead, according to the forecast simulations, to an underestimation of the CO<sub>2</sub> fertilization effect on soybean production and an overestimation of the CO<sub>2</sub> fertilization effect on corn production. Given the diverse uses of corn and soybeans, such shifts in their acreage and production could have important implications for multiple sectors and market dynamics.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102782"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maize price Shocks, food consumption and the mediating role of access to market in Ghana 玉米价格冲击、粮食消费和加纳市场准入的中介作用

IF 6.8 1区经济学

Food Policy Pub Date : 2025-01-01 DOI: 10.1016/j.foodpol.2024.102783

Edward Martey , Justina Adwoa Onumah , Frank Adusah-Poku

{"title":"Maize price Shocks, food consumption and the mediating role of access to market in Ghana","authors":"Edward Martey , Justina Adwoa Onumah , Frank Adusah-Poku","doi":"10.1016/j.foodpol.2024.102783","DOIUrl":"10.1016/j.foodpol.2024.102783","url":null,"abstract":"<div><div>The existing empirical literature on the impact of food price shocks on food consumption has primarily concentrated on market-purchased foods, offering limited insights into home-produced foods and the quality of food. Addressing this gap, our study employs panel data from Ghana to investigate the relationship between exposure to positive maize price shocks and price variability and household consumption patterns of nutrient-dense and less nutrient-dense diets, considering both market purchases and home production. Our findings indicate that maize price shocks lead to a reduction in households’ consumption of purchased nutrient-dense and less nutrient-dense food groups, while increasing the consumption of home-produced nutrient-dense food groups. The effects of maize price shocks on food consumption vary across household types, primary crop cultivation, and wealth status. Additionally, access to markets emerges as a crucial mechanism through which maize price shocks influence households’ consumption of nutrient-dense and less nutrient-dense diets. The implications of our study underscore the significance of enhanced market access and policy interventions aimed at mitigating food price increases to improve food and nutrition security.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"130 ","pages":"Article 102783"},"PeriodicalIF":6.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143094599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Global shocks to fertilizer markets: Impacts on prices, demand and farm profitability 全球对化肥市场的冲击：对价格、需求和农场盈利能力的影响

IF 6.8 1区经济学

Food Policy Pub Date : 2024-12-24 DOI: 10.1016/j.foodpol.2024.102790

Rob Vos, Joseph Glauber, Charlotte Hebebrand, Brendan Rice

引用次数: 0

Fertilizer and conflicts: Evidence from Myanmar 化肥与冲突：来自缅甸的证据

IF 6.8 1区经济学

Food Policy Pub Date : 2024-12-23 DOI: 10.1016/j.foodpol.2024.102786

Hiroyuki Takeshima , Bart Minten , Joanna van Asselt , Isabel Brigitte Lambrecht , Ian Masias , Joseph Goeb , Zin Wai Aung , May Thet Htar

{"title":"Fertilizer and conflicts: Evidence from Myanmar","authors":"Hiroyuki Takeshima , Bart Minten , Joanna van Asselt , Isabel Brigitte Lambrecht , Ian Masias , Joseph Goeb , Zin Wai Aung , May Thet Htar","doi":"10.1016/j.foodpol.2024.102786","DOIUrl":"10.1016/j.foodpol.2024.102786","url":null,"abstract":"<div><div>The number of farmers residing in fragile and conflict-affected countries is rising globally, yet the impacts of conflict on the economics of inorganic fertilizer in these settings remain poorly understood. We study how conflicts in Myanmar, combined with global fertilizer market disruptions, have affected inorganic fertilizer prices, use, response, and efficiency. We utilize unique nationally representative household panel survey data and a comprehensive approach that employs various analytical methods to examine the nexus between conflicts and fertilizer-related issues. Our findings reveal that greater intensity of violent events is associated with higher prices of major types of inorganic fertilizer, particularly in areas farther from major import locations. These price changes and increases in violent events have suppressed both the likelihood and quantity of inorganic fertilizer usage, leading to decreased rice yield responses at given nitrogen application levels. Panel stochastic frontier analyses, combined with a method addressing the endogeneity of inorganic fertilizer use, suggest a significant decline in fertilizer use efficiency each year since the onset of conflict. The increase in violent events is also associated with the reduced use of extension services, seeds from markets, irrigation, and optimal fertilizer blends, which may partly explain the diminished returns and efficiency of inorganic fertilizer use. Conflict therefore seems to be associated with a change in the economics of inorganic fertilizer use through various impact channels, affecting agricultural performance in these fragile and conflict-affected settings.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"133 ","pages":"Article 102786"},"PeriodicalIF":6.8,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143155647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fertilizer demand and profitability amid global fuel-food-fertilizer crisis: Evidence from Ethiopia 全球燃料-粮食-肥料危机中的肥料需求和盈利能力：来自埃塞俄比亚的证据

IF 6.8 1区经济学

Food Policy Pub Date : 2024-12-22 DOI: 10.1016/j.foodpol.2024.102785

Thomas W. Assefa, Guush Berhane, Gashaw T. Abate, Kibrom A. Abay

{"title":"Fertilizer demand and profitability amid global fuel-food-fertilizer crisis: Evidence from Ethiopia","authors":"Thomas W. Assefa, Guush Berhane, Gashaw T. Abate, Kibrom A. Abay","doi":"10.1016/j.foodpol.2024.102785","DOIUrl":"10.1016/j.foodpol.2024.102785","url":null,"abstract":"<div><div>We assess fertilizer demand and profitability in Ethiopia in the face of the recent global fuel–food–fertilizer price crisis and other domestic shocks. We first examine farmers’ response to changes in both fertilizer and food prices by estimating price elasticity of demand. We then evaluate the profitability of fertilizer by computing average value–cost ratios (AVCRs) associated with fertilizer application before and after these crises. We use detailed longitudinal household survey data collected in three rounds, covering both pre-crisis (2016 and 2019) and post-crisis (2023) production periods, focusing on three main staple crops in Ethiopia (maize, teff, and wheat). Our analysis shows that fertilizer adoption, and yield levels were increasing until the recent crises, but these trends have been halted by these crises. We also find slightly larger fertilizer price elasticity of demand estimates than previous estimates, ranging between −0.40 and −1.12, which vary across crops. We find that farmers are more responsive to fertilizer prices than to output prices. Farmers’ response to increases in staple prices was statistically insignificant and hence not as strong as theoretically perceived. Households with smaller farm sizes are relatively more responsive to changes in fertilizer prices. Finally, we show important dynamics in the profitability of chemical fertilizer. While the AVCRs show profitable trends for most crops, the share of farmers with profitable AVCRs declined following the fertilizer price surges. Our findings offer important insights for policy focusing on mitigating the adverse effects of fertilizer price shocks.</div></div>","PeriodicalId":321,"journal":{"name":"Food Policy","volume":"133 ","pages":"Article 102785"},"PeriodicalIF":6.8,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0