American Journal of Agricultural Economics最新文献

{"title":"A flexible model of food security: Estimation and implications for prediction","authors":"Will Davis,&nbsp;José Xilau,&nbsp;Rusty Tchernis,&nbsp;Christian Gregory","doi":"10.1111/ajae.70012","DOIUrl":"10.1111/ajae.70012","url":null,"abstract":"<p>We propose a novel Bayesian Graded Response Model (BGRM) for measuring household-level food security and other latent traits. The BGRM produces continuous food security estimates along with household-level measures of estimation uncertainty. Unlike the USDA's official model, the BGRM accommodates both binary and ordered polytomous items. We further extend the model to allow for any combination of binary, ordered polytomous, and even continuous variables. To demonstrate the model's features, we estimate the BGRM using responses to the 10 adult core Food Security Module questions from the 2017–2018 National Health and Nutrition Examination Survey (NHANES). Results show non-trivial uncertainty in household-level food security estimates and overlap across USDA-defined food security categories. As a robustness check, we estimate the model with Current Population Survey data, finding qualitatively similar results. We illustrate an application of the continuous food security estimates by calculating Foster, Greer, and Thorbecke indices which capture the prevalence, depth, and severity of food insecurity. To demonstrate flexibility in variable selection, we also include a continuous variable, household-level <i>monthly food spending</i>, capturing both economic access and experiential food security information in a single latent construct. The adaptability of the BGRM positions it as a versatile tool for measuring food security and related latent traits, particularly when measures of uncertainty or a mix of different variable types are required. While the empirical application illustrates model capabilities, the primary contribution of the study is methodological.</p>","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 3","pages":"954-980"},"PeriodicalIF":3.3,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696323","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}

{"title":"Farmers' pro-social motivations and willingness-to-accept in markets with public goods","authors":"Jill Fitzsimmons,&nbsp;Hikaru Hanawa Peterson,&nbsp;Nathalie Lavoie","doi":"10.1111/ajae.70004","DOIUrl":"10.1111/ajae.70004","url":null,"abstract":"<p>To explain how some farmers' decisions may diverge from profit-maximization, we incorporate proactive social preferences for public goods in an expected utility framework, in addition to reactive risk preferences to uncertainty. We offer empirical evidence that proactive preferences influence farmers' decisions alongside reactive preferences by combining a discrete choice experiment, a dictator game, and the Eckle Grossman risk elicitation method. In our application, farmers choose between selling to origin-identified (OI) markets, which may provide public goods but involve uncertainty, and to wholesale markets, which offer certainty but do not provide public goods. Farmers are heterogeneous in their valuation of OI markets, but, on average, are willing to accept loss in profit to sell to OI markets. This willingness-to-accept is partially explained by farmers' social preferences, even when controlling for risk preferences. Our results show that when evaluating policies, failure to consider either social or risk preferences leads to considerably different outcomes. To increase sales through OI markets and support the perceived associated public goods, policymakers could leverage farmers' preferences for these markets with carefully designed incentives.</p>","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 3","pages":"799-828"},"PeriodicalIF":3.3,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ajae.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147696418","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}

{"title":"How does the Kids SIP<i>smart</i>ER Program Impact the Sugar-Sweetened Beverage Intake of Students: An Investigation beyond Total Treatment Effect in Randomized Controlled Trial.","authors":"Naveen Abedin, Wen You, Annie Reid, Kathleen Porter, Brittany Kirkpatrick, Jamie Zoellner","doi":"10.1002/ajae.70065","DOIUrl":"10.1002/ajae.70065","url":null,"abstract":"<p><p>This study develops and empirically estimates a structural framework to decompose the causal pathways of multilevel behavioral interventions targeting adolescent health behaviors. We apply this framework to the Kids SIP<i>smart</i>ER (KSS) program, a 6-month, school-based intervention evaluated through a clustered randomized control trial in rural Appalachia to reduce sugar-sweetened beverage (SSB) consumption among 7th-grade students. KSS includes a classroom-based student component (KSS-S) grounded in the Theory of Planned Behavior and health literacy, and a caregiver component (KSS-C) delivered through two-way text messaging to modify household beverage practices. Using structural equation modeling grounded in a Stackelberg household production framework, we estimate how behavioral strategies, health literacy, and caregiver-child decision-making jointly shape students' SSB intake. Stronger behavioral intentions are associated with a 5.30 oz/day reduction (p<0.01), and the caregiver decision index (capturing household rules, availability, and role modeling) corresponds to a 16.41 oz/day reduction. KSS-S reduces intake by 6.42 oz/day (p<0.05), largely through a direct pathway (6.23 oz/day, p<0.05). KSS-C reduces intake by 4.22 oz/day, primarily through caregiver-mediated effects (3.36 oz/day). Combined, both components reduced students' SSB consumption by 10.64 oz/day (36% from baseline) (p<0.01). We use the estimated structural parameters to simulate hypothetical SSB tax scenarios, finding that KSS achieves reductions comparable to those generated by modest tax rates. This suggests that school-based behavioral interventions like KSS can function as complementary or alternative policy tools. By identifying causal mechanisms and enabling counterfactual policy simulations within a unified framework, the structural approach provides richer policy insights than average treatment effects alone.</p>","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13052511/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147635316","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}

{"title":"Economics of land-based carbon mitigation","authors":"Madhu Khanna","doi":"10.1002/ajae.70056","DOIUrl":"https://doi.org/10.1002/ajae.70056","url":null,"abstract":"<p>Agricultural land holds tremendous potential to contribute to net zero greenhouse gas emission goals by providing low carbon renewable energy to displace fossil fuels and by serving as a sink for sequestering carbon in the soil with climate-smart practices. This potential is, however, far from being realized. This paper examines the economic incentives and barriers to implementing land-based carbon mitigation strategies and discusses the specific features of land-based carbon mitigation practices on carbon emissions that need to be considered in designing policy incentives to induce adoption. Although a carbon price-based policy is socially efficient, the more commonly observed policies to promote land-based carbon mitigation include practice-based conservation programs, technology mandates, and sector-specific standards. The paper discusses the rationale for these alternative policy approaches and concludes with a discussion of emerging opportunities for designing policy and market-based approaches for promoting land-based carbon-mitigation and future directions for economics research.</p>","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":"443-461"},"PeriodicalIF":3.3,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajae.70056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146176499","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}

{"title":"De gustibus est disputandum: The role of agricultural and applied economists in an era of behavior change initiatives and endogenous preferences","authors":"Brian E. Roe","doi":"10.1002/ajae.70049","DOIUrl":"https://doi.org/10.1002/ajae.70049","url":null,"abstract":"<p>Popular society increasingly questions preferences that drive many resource allocations and production decisions, with many groups actively seeking to alter those preferences to achieve changes to resource use. Agricultural and applied economists, who are already equipped with excellent technical skills to undertake consumer preference and valuation studies, must also be challenged to understand post-Beckerian consumer theories that can help guide emerging requests placed upon economists as multi-disciplinary collaborators as non-academic groups press us to join in work involving interventions that work from the implicit assumption that preferences are malleable and potentially endogenous. I call association members to follow our best traditions of studying production dynamics and incorporating emerging theories drawn from or inspired by other disciplines so that we may better interact with the broader scientific community who, as many suggest, finds our insistence on stable and static preferences to limit the usefulness of economists in handling a raft of modern dilemmas. In addition to setting out the history of economists' reticence in considering endogenous preferences, I will outline several threads of emerging literature that can provide structure to professional inquiry in this domain and sketch some emergent cases with implications for the agricultural and resource sectors.</p>","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":"429-442"},"PeriodicalIF":3.3,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajae.70049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146193561","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}

{"title":"Award winning theses","authors":"","doi":"10.1002/ajae.70055","DOIUrl":"https://doi.org/10.1002/ajae.70055","url":null,"abstract":"","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":"737-741"},"PeriodicalIF":3.3,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146176520","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}

{"title":"Ted Schroeder","authors":"","doi":"10.1002/ajae.70052","DOIUrl":"https://doi.org/10.1002/ajae.70052","url":null,"abstract":"","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146176479","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}

{"title":"Wiktor (Vic) Adamowicz","authors":"","doi":"10.1002/ajae.70053","DOIUrl":"https://doi.org/10.1002/ajae.70053","url":null,"abstract":"","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":"421-422"},"PeriodicalIF":3.3,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146193553","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}

{"title":"AAEA Fellows","authors":"","doi":"10.1002/ajae.70050","DOIUrl":"https://doi.org/10.1002/ajae.70050","url":null,"abstract":"","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":"412-416"},"PeriodicalIF":3.3,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146199433","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}

{"title":"Amy W. Ando","authors":"","doi":"10.1002/ajae.70054","DOIUrl":"https://doi.org/10.1002/ajae.70054","url":null,"abstract":"","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"108 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146193554","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}