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Navigating the challenges of building a more resilient infant formula industry 应对挑战,建设更具复原力的婴儿配方奶粉行业
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2024-01-10 DOI: 10.1002/aepp.13416
Jackie Yenerall, Andrew Muhammad, Karen DeLong, Trey Malone

In 2022, U.S. consumers experienced an infant formula shortage that resulted in historic out-of-stock rates and brought renewed attention to market concentration in the infant formula market. FDA regulation, tariffs, and limiting WIC benefit redemption to a state's contract brand of infant formula, all potential barriers to competition, were temporarily relaxed to mitigate the impact of the shortage. This article discusses the potential trade-offs associated with permanent policy changes while highlighting opportunities for future research to support the development of policies to improve resiliency in the infant formula market.

2022 年,美国消费者经历了一场婴儿配方奶粉短缺,造成了历史性的缺货率,使婴儿配方奶粉市场的市场集中度再次受到关注。美国食品和药物管理局(FDA)的规定、关税以及将 WIC 福利兑换限制为各州合同品牌的婴儿配方奶粉,这些潜在的竞争壁垒都被暂时放宽,以减轻短缺带来的影响。本文讨论了与永久性政策变化相关的潜在权衡,同时强调了未来研究的机会,以支持制定政策,提高婴儿配方奶粉市场的适应力。
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引用次数: 0
Do regional trade agreements affect agri-food trade? Evidence from a meta-analysis 区域贸易协定会影响农业食品贸易吗?荟萃分析的证据
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-29 DOI: 10.1002/aepp.13410
Sylvanus Kwaku Afesorgbor, Dela-Dem Doe Fiankor, Binyam Afewerk Demena

Regional trade agreements (RTAs) have experienced significant growth worldwide, leading to an increase in studies assessing their impact on bilateral trade flows. With the availability of disaggregated trade data, numerous studies have examined the influence of these agreements specifically on agri-food trade. However, the results of these studies exhibit heterogeneity, posing challenges for policymakers seeking to understand the effects of RTAs on agri-food trade. To address this issue, we conducted a meta-analysis of 61 studies investigating the effects of various RTAs on agri-food trade. Using funnel asymmetric testing, our analysis reveals the presence of publication bias in the existing literature. By accounting for this bias, we found robust evidence that RTAs positively and significantly promote agri-food trade. Notably, the extent of this effect depends on the depth of economic integration within the RTA, distinguishing between customs unions and free trade agreements, as well as the classification of agri-food products as primary or processed. The ex-post effects of RTAs on agri-food trade are less pronounced when we control for both publication bias and heterogeneity, compared to controlling only for publication bias.

区域贸易协定(RTAs)在全球范围内经历了显著增长,导致评估其对双边贸易流动影响的研究增多。随着分类贸易数据的可用性,许多研究专门探讨了这些协定对农业食品贸易的影响。然而,这些研究的结果呈现出异质性,这给寻求了解区域贸易协定对农业食品贸易影响的政策制定者带来了挑战。为解决这一问题,我们对调查各种区域贸易协定对农业食品贸易影响的 61 项研究进行了元分析。利用漏斗不对称检验,我们的分析揭示了现有文献中存在的发表偏差。考虑到这一偏差,我们发现了强有力的证据,表明区域贸易协定积极、显著地促进了农业食品贸易。值得注意的是,这种效应的程度取决于区域贸易协定内经济一体化的深度,区分关税同盟和自由贸易协定,以及农业食品产品的初级或加工分类。与只控制出版偏差相比,当我们同时控制出版偏差和异质性时,区域贸易协定对农业食品贸易的事后效应就不那么明显了。
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引用次数: 0
A meta-analysis of U.S. food demand elasticities to detect the impacts of scanner data 对美国食品需求弹性进行元分析,检测扫描仪数据的影响
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-26 DOI: 10.1002/aepp.13414
Younghyeon Jeon, Hoa Hoang, Wyatt Thompson, David Abler

This paper investigates how scanner data affect demand elasticity estimates and develops methods for scientists to adapt estimated elasticities to analyses of specific policies. We conduct a meta-analysis of U.S. demand elasticities and find evidence that scanner data generate statistically different elasticities, with more elastic demand than other data types. Own-price elasticity estimates from household scanner quantity data appear to be more elastic than other quantity types. Household-level estimates using retail scanner price data, as proxies for prices, tend to be more price-elastic than other price types. These results suggest caution or adjustment when selecting elasticities for policy analysis.

本文研究了扫描仪数据如何影响需求弹性估计值,并为科学家制定了调整弹性估计值的方法,以便对具体政策进行分析。我们对美国的需求弹性进行了元分析,发现有证据表明扫描仪数据产生的弹性在统计上是不同的,需求弹性大于其他数据类型。从家庭扫描仪数量数据得出的自有价格弹性估计值似乎比其他数量类型更具弹性。使用零售扫描仪价格数据作为价格代理的家庭级估计值,往往比其他价格类型更具价格弹性。这些结果表明,在选择用于政策分析的弹性时应谨慎或进行调整。
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引用次数: 0
Decent and equal work in agri-food systems: Evidence from Peru 农业食品体系中的体面和平等工作:秘鲁的证据
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-26 DOI: 10.1002/aepp.13415
Anna Fabry, Monica Schuster, Miet Maertens

Agri-food systems are important sources of rural off-farm employment, but insights on job quality are limited. We study job quality in the Peruvian horticultural sector and explore the driving forces of decent and equal work, using survey data and econometric methods. We find structural disparities in wages and job quality between men and women and between local and migrant workers, trade-offs between wage and nonwage dimensions of decent work, and sector and company differences. Our findings contest that global value chains are a catalyst for decent and equal work and underscore the importance of formalization and government regulation of employment.

农业食品系统是农村非农就业的重要来源,但对工作质量的认识却很有限。我们利用调查数据和计量经济学方法,研究了秘鲁园艺部门的工作质量,并探讨了体面和平等工作的驱动力。我们发现,男女之间、本地工人和移民工人之间在工资和工作质量方面存在结构性差异,体面工作的工资和非工资方面存在权衡,部门和公司之间也存在差异。我们的研究结果证明,全球价值链是体面和平等工作的催化剂,并强调了就业正规化和政府监管的重要性。
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引用次数: 0
A reconsideration of food insecurity trends in the United States 重新考虑美国粮食不安全的趋势
IF 3.3 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-20 DOI: 10.1002/aepp.13412
Craig Gundersen

The food insecurity status of a household in the United States is generally put into the categories of food secure, low food secure, or very low food secure. Substantial differences in the level of need within categories are then ignored. In response, I establish a class of food insecurity measure using the binary measure of food insecurity combined with a measure of “dollars needed to be food secure.” Using data from the 2010 to 2021 Current Population Survey, I examine whether patterns of food insecurity differ by choice of measure. The two most notable findings are, first, that changes in food insecurity are similar across measures up until 2019 when they began to diverge and, second, that while aggregate rates fell from 2010 to 2021 under all measures, groups especially vulnerable to food insecurity saw smaller declines in the food insecurity rate and increases over other measures.

在美国,一个家庭的粮食不安全状况通常被划分为粮食安全等级、粮食安全等级较低等级或粮食安全等级极低等级。不同类别之间需求水平的巨大差异就被忽略了。为此,我使用粮食不安全的二元衡量标准,结合 "实现粮食安全所需美元 "的衡量标准,建立了一类粮食不安全衡量标准。利用 2010 年至 2021 年的当前人口调查数据,我研究了食物不安全的模式是否因选择的衡量标准而有所不同。两个最值得注意的发现是:第一,在 2019 年之前,不同衡量标准下的粮食不安全变化是相似的,而在 2019 年之后,它们开始出现分歧;第二,虽然在 2010 年至 2021 年期间,所有衡量标准下的总比率都有所下降,但特别容易受到粮食不安全影响的群体的粮食不安全率下降幅度较小,而其他衡量标准下的粮食不安全率则有所上升。
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引用次数: 0
Estimating the impact of cover crop adoption on ambient nitrogen concentration in the upper Mississippi River drainage 估算采用覆盖作物对密西西比河上游流域环境氮浓度的影响
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-19 DOI: 10.1002/aepp.13408
Hsin-Chieh Hsieh, Benjamin M. Gramig

We examine cover crop (CC) adoption to determine how this soil health practice has influenced agricultural non-point source pollution. We use remotely sensed data on practice adoption, and control for hydrological flow direction, weather, and land use to estimate the ex post impact of CC on total Nitrogen concentrations in surface water while controlling for pollutant spillovers from upstream. At the mean treatment level in the study area (3.2%), a 1% increase in CC adoption results in a 0.06 mg/L (2%) reduction in concentration in the study area. Results provide novel estimates based on observed data that can be compared to biophysical simulations of CC effectiveness.

我们研究了覆盖作物(CC)的采用情况,以确定这种土壤保健方法如何影响农业非点源污染。我们使用有关采用该方法的遥感数据,并控制水文流向、天气和土地使用情况,以估算 CC 对地表水总氮浓度的事后影响,同时控制上游污染物的溢出。在研究区域的平均处理水平(3.2%)下,采用 CC 的比例每增加 1%,研究区域的浓度就会降低 0.06 毫克/升(2%)。研究结果提供了基于观测数据的新估算值,可与 CC 效果的生物物理模拟进行比较。
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引用次数: 0
Sales performance of direct food marketers: African American-led operations 食品直销商的销售业绩:非裔美国人领导的业务
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-18 DOI: 10.1002/aepp.13405
Timothy Park, Steve Martinez, Mohammed Ibrahim

This paper examines the impact of participation in direct marketing on the entire distribution of farm sales for African American (AA) operations using the unconditional quantile regression (UQR) estimator. Our analysis yields unbiased estimates of the unconditional impact of direct marketing on farm sales and reveals the heterogeneous effects that occur across the distribution of farm sales. The sales gap for AA-led operations is about 11% across all quantiles when we control for farming and marketing experience along with key features of the farm operation such as crop choice and geographic location. The relative sales gap for AA operations declines across the distribution of farm sales and actually disappears for the largest operations. The network effect that we identify is associated with a sales premium for AA-led operations relative to other operations engaged in direct marketing. Marketing experts and extension professionals can use this information to guide farmers who are considering initiating or expanding direct marketing activities.

本文使用无条件量值回归(UQR)估计法研究了参与直销对非裔美国人(AA)农场销售额整个分布的影响。我们的分析得出了直销对农场销售额无条件影响的无偏估计值,并揭示了农场销售额分布中出现的异质性影响。当我们对农业和营销经验以及农场经营的主要特征(如作物选择和地理位置)进行控制时,AA 主导的经营在所有量级上的销售差距约为 11%。在农场销售额的分布中,AA 经营的相对销售额差距逐渐缩小,最大经营的差距实际上已经消失。我们所发现的网络效应与 AA 主导型经营相对于其他直销经营的销售溢价有关。营销专家和推广专业人员可以利用这些信息,为正在考虑启动或扩大直销活动的农民提供指导。
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引用次数: 0
Adaptation to climate change: The irrigation technology mix of Italian farmers 适应气候变化:意大利农民的灌溉技术组合
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-16 DOI: 10.1002/aepp.13411
Charlotte Fabri, Michail Tsagris, Michele Moretti, Steven Van Passel

Farmers should increasingly adopt more water-efficient irrigation technologies—such as drip irrigation—as a result of climate warming and aggravating water scarcity. We analyze how Italian farmers adapt to climate change by changing their irrigation technology mix. We apply a two-stage econometric model to data from 5876 Italian farms. We find that farmers' initial reaction to increasing temperatures is reducing their surface-irrigated fractions. When temperatures increase further, farmers switch toward more sprinkler irrigation. Our results show that farmers are not autonomously moving to drip irrigation in response to climate change, suggesting that government incentives are needed to encourage this transition.

由于气候变暖和水资源短缺加剧,农民应越来越多地采用滴灌等节水灌溉技术。我们分析了意大利农民如何通过改变灌溉技术组合来适应气候变化。我们对来自 5876 个意大利农场的数据采用了两阶段计量经济学模型。我们发现,农民对气温升高的最初反应是减少地表灌溉比例。当气温进一步升高时,农民会转向更多的喷灌。我们的结果表明,农民并没有根据气候变化自主转向滴灌,这表明需要政府采取激励措施来鼓励这种转变。
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引用次数: 0
The distribution of competitive research grants from the National Institute for Food and Agriculture: A comparison of 1862 land grant universities, 1890 land grant universities, and other institutions 国家食品与农业研究所竞争性研究补助金的分配情况:1862 年赠地大学、1890 年赠地大学和其他机构的比较
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-15 DOI: 10.1002/aepp.13413
Norbert L. W. Wilson, Lurleen M. Walters, Tara Wade, Kenesha Reynolds

This article evaluates the U.S. Department of Agriculture, National Institute for Food and Agriculture (NIFA) competitive grant funding awarded to predominately White 1862 land grant institutions (LGUs), historically Black 1890 LGUs, and non-land grant institutions. We present the historical distribution of funding for agricultural research. Much of the inquiry centers on the differential funding of the 1862 LGUs, 1890 LGUs, and non-land grant institutions. We discuss the implications for academic and community stakeholders. Results show that, on average, 1890 LGUs and non-land grant institutions receive less competitive grant funding than 1862 LGUs for the same award programs. We show that the disparity falls from 2010 to 2019.

本文评估了美国农业部国家食品与农业研究所(NIFA)向白人占主导地位的 1862 个土地赠款机构(LGUs)、历史上的 1890 个黑人土地赠款机构以及非土地赠款机构提供的竞争性赠款资金。我们介绍了农业研究资金的历史分布情况。大部分调查集中在 1862 年土地赠款机构、1890 年土地赠款机构和非土地赠款机构的资金差异上。我们讨论了对学术界和社区利益相关者的影响。结果显示,平均而言,在相同的奖励项目中,1890 年地方政府联盟和非土地补助机构获得的竞争性补助资金少于 1862 年地方政府联盟。我们发现,从 2010 年到 2019 年,这一差距有所缩小。
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引用次数: 0
What do we know about the value and market impact of the US Department of Agriculture reports? 我们对美国农业部报告的价值和市场影响了解多少?
IF 5.8 2区 经济学 Q2 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2023-12-14 DOI: 10.1002/aepp.13409
Olga Isengildina Massa, Berna Karali, Scott H. Irwin

The purpose of this paper is to comprehensively review the literature on the value and impact of the US Department of Agriculture (USDA) reports and discuss theoretical issues and empirical evidence. Only a handful of studies provide direct estimates of the welfare benefits of USDA information using a rational expectations framework in storable commodity markets. Most studies examine partial evidence of welfare benefits associated with market response to USDA information. These studies include examinations of the impacts of USDA report releases on cash and futures price volatility and other market dynamics, impacts of report releases on options implied volatility, impacts of unanticipated information in USDA reports, as well as informational value, returns, and survey-based studies. We discuss the methodological and empirical contributions of these studies as well as their shortcomings and potential opportunities for future work.

本文旨在全面回顾有关美国农业部(USDA)报告的价值和影响的文献,并讨论理论问题和经验证据。只有少数研究利用理性预期框架,在可储存商品市场上对美国农业部信息的福利效益进行了直接估算。大多数研究考察了与市场对美国农业部信息的反应相关的福利收益的部分证据。这些研究包括美国农业部报告发布对现货和期货价格波动及其他市场动态的影响、报告发布对期权隐含波动率的影响、美国农业部报告中意外信息的影响,以及基于信息价值、回报和调查的研究。我们讨论了这些研究在方法和经验方面的贡献,以及它们的不足之处和未来工作的潜在机会。
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引用次数: 0
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Applied Economic Perspectives and Policy
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