American Journal of Agricultural Economics最新文献_第10页

Understanding the effect of cover crop use on prevented planting losses 了解覆盖作物使用对预防种植损失的影响

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-26 DOI: 10.1111/ajae.12396

Sunjae Won, Roderick M. Rejesus, Barry K. Goodwin, Serkan Aglasan

{"title":"Understanding the effect of cover crop use on prevented planting losses","authors":"Sunjae Won, Roderick M. Rejesus, Barry K. Goodwin, Serkan Aglasan","doi":"10.1111/ajae.12396","DOIUrl":"10.1111/ajae.12396","url":null,"abstract":"Cover cropping has the potential to improve resilience of agriculture to climate-change-induced extreme weather events. However, rigorous quantitative evidence on the resilience effect of cover crops is still lacking. Using a novel data set that combines satellite-based cover crop information and county-level crop insurance data, we examine the impact of planting cover crops on prevented-planting-related losses that are typically caused by heavy rainfall events. The US federal crop insurance program offers “prevented planting” coverage, which pays indemnities if insured growers are unable to plant their crop due to adverse weather. Linear fixed effects models, instrument-based estimation methods, long-difference models, and a number of other robustness checks are utilized in the empirical analysis to achieve the study objective. Our findings suggest that counties with higher cover crop adoption rates tend to have lower levels of crop insurance losses due to prevented planting. The resulting reduction in prevented planting risk also becomes larger with longer term, multiyear cover crop use. These results support the notion that cover crops improve soil conditions such that the likelihood and magnitude of prevented planting losses decrease. We posit that the ability of cover crops to handle excess moisture (i.e., through better water absorption and improved water infiltration in the soil) is the main factor in its ability to reduce prevented planting losses in the US Midwest.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"106 2","pages":"659-683"},"PeriodicalIF":4.2,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ajae.12396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43358060","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

Information rigidities in USDA crop production forecasts 美国农业部作物产量预测中的信息刚性

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-23 DOI: 10.1111/ajae.12373

Raghav Goyal, Michael K. Adjemian

{"title":"Information rigidities in USDA crop production forecasts","authors":"Raghav Goyal, Michael K. Adjemian","doi":"10.1111/ajae.12373","DOIUrl":"10.1111/ajae.12373","url":null,"abstract":"USDA invests significant public resources into developing its crop projection reports. These publications inform decisions across the supply chain. Several previous studies find that revisions to the department's production and yield forecasts for major agricultural commodities are positively correlated and conclude that they deviate from what would be observed under rational expectations, possibly due to smoothing on the part of forecasters. Yet correlated revisions may also be explained by information rigidities that cause forecasts to be infrequently or only partially updated. We apply a recently developed test to these USDA revisions for corn, soybeans, and wheat, and find no significant evidence that the forecasts are smoothed strategically. Rather, we show that information rigidities are the more likely culprit, due to production and yield information that is either too costly to obtain or too noisy. Our results demonstrate that data challenges are the main source of inefficiency in USDA projections, and that the department can improve the efficiency of its forecasts by making investments that improve its access to crop data, perhaps through crop-monitoring satellite and remote sensing technology.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"105 5","pages":"1405-1425"},"PeriodicalIF":4.2,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45268819","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

Evaluating the tradeoff between cost effectiveness and participation in agricultural conservation programs 评估成本效益和参与农业保护计划之间的权衡

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-22 DOI: 10.1111/ajae.12397

Gregory Howard, Wendong Zhang, Adriana Valcu-Lisman, Philip W. Gassman

{"title":"Evaluating the tradeoff between cost effectiveness and participation in agricultural conservation programs","authors":"Gregory Howard, Wendong Zhang, Adriana Valcu-Lisman, Philip W. Gassman","doi":"10.1111/ajae.12397","DOIUrl":"10.1111/ajae.12397","url":null,"abstract":"Using a survey of 430 farmer respondents in the Boone and North Raccoon River watersheds in Iowa, we examine the impacts of three program innovations—reverse auctions, spatially targeted payments, and higher offered payments—on agricultural conservation program cost effectiveness and participation by farmers. We combine farmer responses to a discrete choice experiment offering voluntary conservation contracts with township-level estimates of per-acre nitrogen reductions from each practice derived from the process-based ecohydrological Soil and Water Assessment Tool model. Using a random-parameters logit model, we show that both cost-reducing and benefit-boosting interventions reduce budgetary costs per projected pound of nitrogen removed from the watershed for each practice and thus are more cost effective than the prevailing current cost-share programs. However, we find that these interventions can reduce participation by 30%–70%. Our policy simulations show that even with large budgets, the watershed-level nitrogen reduction from all policy interventions remains far below the policy targets set by the Iowa Nutrient Reduction Strategy. Furthermore, we find cover crop contracts are far more cost effective than no-till/strip-till split nitrogen application contracts.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"106 2","pages":"712-738"},"PeriodicalIF":4.2,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45512159","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

A call for justice work in agricultural and applied economics 农业与应用经济学司法工作的呼唤

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-20 DOI: 10.1111/ajae.12386

Norbert Lance Weston Wilson

引用次数: 0

Incentive mechanisms to exploit intraseasonal price arbitrage opportunities for smallholder farmers: Experimental evidence from Malawi 利用小农户季节内价格套利机会的激励机制：来自马拉维的实验证据

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-15 DOI: 10.1111/ajae.12376

Tabitha Nindi, Jacob Ricker-Gilbert, Jonathan Bauchet

{"title":"Incentive mechanisms to exploit intraseasonal price arbitrage opportunities for smallholder farmers: Experimental evidence from Malawi","authors":"Tabitha Nindi, Jacob Ricker-Gilbert, Jonathan Bauchet","doi":"10.1111/ajae.12376","DOIUrl":"10.1111/ajae.12376","url":null,"abstract":"Seasonal commodity price fluctuations can potentially offer farmers arbitrage opportunities to increase their income. However, smallholder farmers in most of sub-Saharan Africa often do not exploit these opportunities to the fullest extent possible. To inform this issue, we conducted a randomized controlled trial among 1739 smallholder farmers in Malawi to estimate the impact of two key post-harvest constraints, lack of appropriate storage technology and commitment issues, on farmers' legume storage and sales decisions. The treated groups received (i) an improved storage technology in the form of two hermetic (airtight) bags, (ii) the same improved storage technology under the condition that farmers store collectively with members of their farmer club in their village, and/or (iii) the improved storage technology under the condition that farmers store collectively at a centralized association warehouse. We analyzed the impacts of these treatments on storage behavior and revenue from sales. Results indicated that addressing the technological and commitment constraints simultaneously had the largest average impacts. One year after the intervention, farmers offered hermetic bags and the village storage program (Treatment 2) stored 24% more legumes at harvest, stored 27% longer, received a 3% higher price for their legumes and ultimately made 12% more on average than farmers in the control group. Farmers in that treatment also improved some (but not all) outcomes compared to farmers in other treatment groups. These findings suggest that combining technology with collective action that is localized and flexible can lead to better post-harvest outcomes for smallholder farmers.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"106 1","pages":"330-353"},"PeriodicalIF":4.2,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ajae.12376","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46659952","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: 2

SNAP enrollment cycles: New insights from heterogeneous panel models with cross-sectional dependence SNAP入组周期:来自具有横断面依赖性的异质面板模型的新见解

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-14 DOI: 10.1111/ajae.12390

Pourya Valizadeh, Bart L. Fischer, Henry L. Bryant

{"title":"SNAP enrollment cycles: New insights from heterogeneous panel models with cross-sectional dependence","authors":"Pourya Valizadeh, Bart L. Fischer, Henry L. Bryant","doi":"10.1111/ajae.12390","DOIUrl":"10.1111/ajae.12390","url":null,"abstract":"The Supplemental Nutrition Assistance Program (SNAP) has grown rapidly over the past 2 decades. A large literature relies on state-level panel data on SNAP enrollment and implements traditional two-way fixed effects estimators to identify the impact of economic conditions on SNAP enrollment. This empirical strategy implicitly assumes slope parameter homogeneity and ignores the possibility of cross-sectional dependence in the regression error terms. The latter could feasibly arise in state-level panel data if the time-varying unobserved common shocks, such as national financial crises, have differential effects on SNAP participation across states in the United States. This study empirically evaluates the appropriateness of these two assumptions by adopting a more general common factor model, allowing for slope parameter heterogeneity and error term cross-sectional dependence both separately and jointly. We find that although assuming a common slope parameter across states does not seem problematic for identification, allowing for the error term cross-sectional dependence leads to a roughly 40% reduction in the estimated long-run impact of the unemployment rate on SNAP enrollment. This finding has important implications for policymaking decisions—even small biases could lead to suboptimal policy responses considering the program's size. Our counterfactual simulations support our main results, implying the importance of carefully accounting for time-varying unobserved heterogeneity when studying the cyclicality of SNAP enrollment using state-level panel data.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"106 1","pages":"354-381"},"PeriodicalIF":4.2,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ajae.12390","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62797619","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: 1

Equity preferences and abatement cost sharing in international environmental agreements 国际环境协定中的公平优惠和减排成本分担

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-14 DOI: 10.1111/ajae.12392

Tobias Börger, Nick Hanley, Robert J. Johnston, Keila Meginnis, Tom Ndebele, Ghamz E. Ali Siyal, Frans de Vries

{"title":"Equity preferences and abatement cost sharing in international environmental agreements","authors":"Tobias Börger, Nick Hanley, Robert J. Johnston, Keila Meginnis, Tom Ndebele, Ghamz E. Ali Siyal, Frans de Vries","doi":"10.1111/ajae.12392","DOIUrl":"10.1111/ajae.12392","url":null,"abstract":"This paper examines empirically the importance of equity preferences for the formation of international environmental agreements (IEA) for transboundary pollution control. Although it has been shown theoretically that the existence of equity preferences among countries considering an IEA increases the chances for formation and stability of a coalition, empirical assessments of such preferences have been limited to climate change mitigation and single-country studies. We consider the case of marine plastic pollution, of which a large share consists of food and beverage containers, representing a transboundary pollution control problem of increasing policy concern, with properties that lead to distinct considerations for equity and the sharing of abatement costs. We employ a coordinated choice experiment in the United Kingdom and United States to assess preferences for abatement-cost allocations in a marine plastics IEA. Pairs of cooperating countries and the relative allocation of abatement costs are varied experimentally. Results show systematic aversion to both advantageous and disadvantageous inequality with respect to abatement costs but also that the relative strength of advantageous and disadvantageous inequality aversion differs across countries. Across both countries, there is evidence that left-leaning voters generally favor more equal international sharing of abatement costs. Differences of these results from the case of greenhouse gas emission reduction, and implications for current efforts to establish a legally binding global treaty on marine plastic pollution, are discussed.","PeriodicalId":55537,"journal":{"name":"American Journal of Agricultural Economics","volume":"106 1","pages":"416-441"},"PeriodicalIF":4.2,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ajae.12392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44097142","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

Award winning theses 获奖论文

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-13 DOI: 10.1111/ajae.12379

引用次数: 0

Paying more to make less: value degrading in the coffee value chain in eastern Uganda 付出更多却赚得更少:乌干达东部咖啡价值链中的价值下降

IF 4.2 2区经济学

American Journal of Agricultural Economics Pub Date : 2023-02-12 DOI: 10.1111/ajae.12389

Cansın Arslan, Daniel Gregg, Meike Wollni

引用次数: 0

Keith Coble Keith Coble

IF 4.2 2区经济学