American Journal of Agricultural Economics最新文献

Impact of inputs, information, and financial services on the adoption of a biofortified crop by women farmers in Uganda 投入物、信息和金融服务对乌干达女农民采用生物强化作物的影响

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-04-09 DOI: 10.1111/ajae.12540

Niklas Buehren, Shyamal Chowdhury, Sreelakshmi Papineni, Munshi Sulaiman

{"title":"Impact of inputs, information, and financial services on the adoption of a biofortified crop by women farmers in Uganda","authors":"Niklas Buehren, Shyamal Chowdhury, Sreelakshmi Papineni, Munshi Sulaiman","doi":"10.1111/ajae.12540","DOIUrl":"https://doi.org/10.1111/ajae.12540","url":null,"abstract":"Smallholder farmers in low- and middle-income countries face several constraints to technology adoption. We test the relative efficacy of interventions designed to incentivize the production and consumption of a biofortified orange-fleshed sweet potato crop by female farmers in Uganda. Through a clustered randomized controlled trial involving more than 8000 female farmers across 210 communities, we track the impact of the interventions on adoption, consumption, and health outcomes, both in the short term and long term. Our findings suggest that the provision of inputs and agricultural extension is an effective approach to adoption, leading over 60% of households to cultivate and 50% to consume the crop. Nutrition training emphasizing the crop's health benefits has limited impact on cultivation, but it leads 20% of households to consume the biofortified crop. Combining the two approaches with supplementary credit and insurance products has limited marginal effects on adoption. We also observe improvements in dietary diversity resulting from the tested interventions, along with spillover effects through social networks in neighboring communities. We find little evidence of treatment effects on higher-order outcomes such as visual acuity, child health and nutrition, or income.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 4","pages":"1117-1151"},"PeriodicalIF":4.2,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Ethnic and gender disparities in U.S. agriculture: An analysis of technology and technical efficiency differentials 美国农业中的种族和性别差异：技术和技术效率差异的分析

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-03-22 DOI: 10.1111/ajae.12539

Eric Njuki, Michée A. Lachaud, Boris E. Bravo-Ureta, Nigel Key

{"title":"Ethnic and gender disparities in U.S. agriculture: An analysis of technology and technical efficiency differentials","authors":"Eric Njuki, Michée A. Lachaud, Boris E. Bravo-Ureta, Nigel Key","doi":"10.1111/ajae.12539","DOIUrl":"https://doi.org/10.1111/ajae.12539","url":null,"abstract":"We explore ethnic and gender disparities in U.S. agriculture by comparing productivity gaps between male- and female-headed family farms, and between non-Hispanic White and minority-headed family farms. Using Agricultural Resource Management Survey data from 2017 to 2020, propensity score matching techniques are applied to obtain comparable samples based on observable covariates. Statistical tests reveal structural differences in production technologies between male- and female-headed farms, and between non-Hispanic White and minority-headed farms, thus requiring the estimation of separate production technologies for each group. Accordingly, a stochastic metafrontier framework is used to envelop the group frontiers and assess technology gaps. The results indicate that female and minority-principal operators not only use different production technologies but are also less proficient at combining inputs to maximize farm output. The results also reveal within-group gender and ethnic differences—ceteris paribus, among non-Hispanic White and minority-led farms, female producers generated substantially less output compared to their male counterparts. Similarly, among male principal operators, Hispanic producers generated more output compared to their non-Hispanic White and non-Hispanic non-White counterparts.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 4","pages":"993-1015"},"PeriodicalIF":4.2,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Correction to “A Montero auction mechanism to regulate antimicrobial consumption in agriculture” 更正“蒙特罗拍卖机制规范农业抗菌药物消费”

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-03-16 DOI: 10.1111/ajae.12543

引用次数: 0

Net worth poverty and food insecurity 净资产贫困和粮食不安全

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-03-12 DOI: 10.1111/ajae.12537

Lisa A. Keister, Christina M. Gibson-Davis, Lisa Gennetian, Noah Gibson

{"title":"Net worth poverty and food insecurity","authors":"Lisa A. Keister, Christina M. Gibson-Davis, Lisa Gennetian, Noah Gibson","doi":"10.1111/ajae.12537","DOIUrl":"https://doi.org/10.1111/ajae.12537","url":null,"abstract":"Food insecurity is a widespread problem faced by American families, particularly those with children. It is clear that poverty contributes to food insecurity, but extant research focuses almost exclusively on income poverty (IP). We move beyond income-centric conceptions of poverty to propose that net worth poverty (NWP) is an important, but overlooked, measure of marginalization and financial hardship that puts families at risk of food insecurity. A family is NWP if they have insufficient net worth to meet basic needs for 3 months, and NWP has increased in recent decades even while IP declined. This paper explores how NWP and its two subcomponents—asset and debt poverty—relate to food insecurity using data from the 2015–2021 Panel Study of Income Dynamics on 5762 households with at least one resident child under 18. Net worth poor households were 11.3% more likely than households that were neither net worth nor income poor to be food insecure. Although asset poverty and debt poverty were associated with increased risks, asset poverty more than doubled the risk of food insecurity relative to debt poverty. Black and Hispanic child households were more likely to be NWP and food insecure than White households, but associations between poverty and food insecurity did not vary by racial and ethnic subgroup. Findings demonstrate how low wealth, including financial assets and debts, affect risks of food insecurity.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 4","pages":"1016-1040"},"PeriodicalIF":4.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Measuring Heterogeneity of Habitualness in Consumer Behavior 测量消费者行为中的习惯异质性

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-03-10 DOI: 10.1111/ajae.12534

Helene Normann Rønnow, Sinne Smed, Linda Thunström, Klaas van 't Veld

{"title":"Measuring Heterogeneity of Habitualness in Consumer Behavior","authors":"Helene Normann Rønnow, Sinne Smed, Linda Thunström, Klaas van 't Veld","doi":"10.1111/ajae.12534","DOIUrl":"https://doi.org/10.1111/ajae.12534","url":null,"abstract":"Habits are key determinants of consumer behavior across a range of domains, such as food consumption, brand selection, transportation choice, technology usage, and health-related behaviors. Habits may also affect consumer responses to exogenous shocks, including changes in policies targeted at consumers. Adequately defining and measuring habits is therefore important for both understanding and predicting consumer behavior. In this paper, we develop a habit index that is based on regularity of observed purchases. Our index is suitable for comparing habitualness across product groups and types of households. We estimate the index using Danish home-scan food purchase data and find that across product groups, habitualness is higher for breakfast foods and products with short shelf lives. Across households, habitualness decreases with household income and is higher for households whose main shopper is male. We also examine how habitualness affects price sensitivity and responsiveness to Danish fat and sugar taxes. We find that habitual consumers are less sensitive to general price fluctuations, but more responsive to tax changes.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 4","pages":"1059-1086"},"PeriodicalIF":4.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ajae.12534","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Impacts of Sandstorms on Wheat Yield in Northern China 沙尘暴对中国北方小麦产量的影响

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-02-24 DOI: 10.1111/ajae.12532

Jue Du, Lingling Hou, Yuanyuan Zhao, Zhexi Zhang

{"title":"Impacts of Sandstorms on Wheat Yield in Northern China","authors":"Jue Du, Lingling Hou, Yuanyuan Zhao, Zhexi Zhang","doi":"10.1111/ajae.12532","DOIUrl":"https://doi.org/10.1111/ajae.12532","url":null,"abstract":"Sandstorms, exacerbated by global warming and distinct from industrial sources of air pollution, have significant detrimental effects on various socio-economic factors. However, evidence of their impact on agricultural production and the adaptation strategies employed by farmers remains limited. This paper estimates the impacts of sandstorms on crop yields and examines the associated adaptation strategies. Using data from 288 counties in China's winter wheat production regions spanning 2000 to 2007, we uncover a substantial 14.8% reduction in winter wheat yields in northern China due to sandstorms. Each additional hour of sandstorm during the winter wheat growing season corresponds to a 1.4% decrease in yield. Household-level data further reveal that sandstorms not only threaten food security by reducing crop yields, but also lead to a significant decrease in planted areas. Furthermore, we find that farmers increase their investments in fertilizer and labor as adaptation measures to mitigate the negative impacts of sandstorms on crop yields. Our results suggest that timely irrigation following a sandstorm, especially in areas with less precipitation, can effectively mitigate its adverse effects, offering valuable insights for reducing the economic impact of sandstorm events. These findings underscore the need for adaptive strategies to safeguard agricultural productivity in the face of increasing sandstorm risks, offering valuable insights for policymakers and stakeholders engaged in agricultural resilience planning.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 4","pages":"1087-1116"},"PeriodicalIF":4.2,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Assessing the impacts of equivalency agreements in international organic trade 评估等效协议对国际有机贸易的影响

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-02-24 DOI: 10.1111/ajae.12533

Siqi Zhang

{"title":"Assessing the impacts of equivalency agreements in international organic trade","authors":"Siqi Zhang","doi":"10.1111/ajae.12533","DOIUrl":"https://doi.org/10.1111/ajae.12533","url":null,"abstract":"This study employs Berry, Levinsohn, and Pakes' (1995; hereafter BLP) model to estimate the impacts of organic equivalency agreements (OEAs) on the market share of exporting countries that shipped organic agrifood products to the markets of the U.S., Canada, and Denmark from 2011 to 2019. The BLP model accounts for variations in the trade impacts of OEAs by considering unobserved, product-specific, agro-ecological comparative advantages and bilateral trade costs. The BLP estimation offers a more realistic trade pattern, showing that exporters producing and selling close substitutes for organic agrifood products with the competitors in the market would be more sensitive to the establishment of OEAs between the competitors and the market. Results indicate that OEA partners of the importer would achieve a higher share in this market than non-OEA partners. The simulation results suggest that Peru would have captured 23.8% of the 2019 U.S. market share if Peru had signed an OEA with the U.S. in 2017. Additionally, Mexico and Turkey would have secured 35.1% and 1.8% of the 2019 Canadian and Danish markets, respectively, had the Mexico–Canada and Turkey–Denmark OEAs been in effect since 2017. These findings, along with changes in the market shares of other exporters under a hypothetically established OEA, provide new insights into organic trade patterns and highlight the potential for further development of OEAs.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 4","pages":"1183-1227"},"PeriodicalIF":4.2,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

How stable and predictable are welfare estimates using recreation demand models? 利用娱乐需求模型估算福利的稳定性和可预测性如何？

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-01-31 DOI: 10.1111/ajae.12508

Patrick Lloyd-Smith, Ewa Zawojska

{"title":"How stable and predictable are welfare estimates using recreation demand models?","authors":"Patrick Lloyd-Smith, Ewa Zawojska","doi":"10.1111/ajae.12508","DOIUrl":"https://doi.org/10.1111/ajae.12508","url":null,"abstract":"Economic analyses of environmental policy projects typically use pre-existing estimates of welfare measures that are then transferred over time to the policy relevant periods. Understanding how stable and predictable these welfare estimates are over time is important for applying them in policy. Yet, revealed preference models of recreation demand have received few temporal stability assessments compared to other nonmarket valuation methods. We use a large administrative panel dataset on campground reservations covering 10 years to study temporal stability and predictability of environmental quality welfare estimates. Welfare estimates are statistically different across years in 62% of the comparisons, and this ranges from 47%–71% depending on modeling assumptions. Using an event study design, we find evidence that week-specific welfare estimates are stable after an initial adjustment week in response to a change in environmental quality. Our findings further reveal that using 2 years of data in the modeling compared to a single year improves the prediction of future welfare measure estimates substantially, but further prediction improvements are modest when including more than 2 years of data. Predictions of welfare estimates are more consistent when using data closer in time to the prediction year. We discuss the implications of our results for using revealed preference studies in policy analysis.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"107 3","pages":"846-868"},"PeriodicalIF":4.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The effect of result-based agri-environmental payments on biodiversity: Evidence from Switzerland 基于结果的农业环境支付对生物多样性的影响：来自瑞士的证据

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-01-28 DOI: 10.1111/ajae.12512

Sergei Schaub, Tobias Roth, Petyo Bonev

引用次数: 0

Climate change: What do we do about it? Economic issues regarding agricultural adaptation and mitigation 气候变化：我们该做些什么？与农业适应和减缓有关的经济问题

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2025-01-28 DOI: 10.1111/ajae.12517

Bruce A. McCarl

引用次数: 0