JAAE 《农业与应用经济学杂志》2026年第58卷第2期目录及摘要
官网链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/issue/1BBF97EDD5E87A3487B0C296B99DFBC8目录 (Table of Contents)
Farm Efficiency and Precision Agriculture TechnologyChad Fiechter, Brady Brewer, Jennifer Ifft, Michael BoehljeGrounded in your Beef-liefs? Assessing the Malleability of U.S. Consumer Beliefs about Ground Beef你的信仰是根深蒂固的吗？评估美国消费者对碎牛肉信念的可塑性Bailey A. Young, Andrew B. Crocker, Ryan Blake WilliamsEvaluating Large Exogenous Shocks Using an Almost Nonlinear Equilibrium Displacement Model: Food Safety Regulations and Leafy Greens Production使用几乎非线性平衡位移模型评估大型外源冲击：食品安全法规和绿叶蔬菜生产Michael McCullough, Joseph Atwood, Gary Brester, Duncan MacEwanThe Loss Function of USDA Forecasters: Evidence from WASDE Animal Product Price Forecasts美国农业部预测员的损失函数：来自 WASDE 动物产品价格预测的证据Chad Fiechter, Siddhartha S. Bora, Todd H. KuetheWhat Drives Tea Prices? Analyzing the Effects of Region, Certification, and Production Factors是什么推动了茶叶价格？分析地区、认证和生产因素的影响Szu-Yung Wang, Yi-Chen TsaiHousehold Food Expenditures and Dietary Diversity in Mexico: The Role of Income, Urbanization, and Region墨西哥家庭食品支出和饮食多样性：收入、城市化和地区的作用Shashika D. Rathnayaka, Cesar Revoredo-GihaTax Incidence on Cropland and Pastureland Rental RatesKatherine L. Welch, Notie Lansford, Dayton M. LambertUnintended Innovation Consequences of Skirting the Environmental Regulation: Evidence from the Food Processing Industry in China规避环境法规的意外创新后果：来自中国食品加工业的证据Falin Sun, Xiangwen Kong, Peibin Hou, Huanguang QiuSoil Characteristics and Crop Insurance LossesBarry K. Goodwin, Roderick M. Rejesus, Serkan Aglasan摘要 (Abstracts)
Farm Efficiency and Precision Agriculture TechnologyChad Fiechter, Brady Brewer, Jennifer Ifft, Michael BoehljeAbstract: Precision agriculture technology (PAT) is often viewed as a potential driver of future efficiency gains in farming. Using within-farm variation from an unbalanced panel of Kansas farms, this study examines the impact of PAT bundles on efficiency in generating gross revenue. On average, we find little evidence that these technologies improve efficiency. However, among less efficient farms, several bundles are linked to notable efficiency gains, underscoring the importance of accounting for heterogeneity when assessing technology adoption benefits.精准农业技术（PAT）通常被视为未来农业效率提升的潜在驱动力。本研究利用堪萨斯州农场不平衡小组的农场内差异，研究了 PAT 捆绑对总收入产生效率的影响。平均而言，我们几乎没有发现任何证据表明这些技术可以提高效率。然而，在效率较低的农场中，一些捆绑与显着的效率增益相关，这强调了在评估技术采用效益时考虑异质性的重要性。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/farm-efficiency-and-precision-agriculture-technology/EEDD519D83047F5B8EE4CCE92D48D3EEGrounded in your Beef-liefs? Assessing the Malleability of U.S. Consumer Beliefs about Ground Beef你的信仰是根深蒂固的吗？评估美国消费者对碎牛肉信念的可塑性Bailey A. Young, Andrew B. Crocker, Ryan Blake WilliamsAbstract: This study examined the malleability of beliefs and preferences about ground beef when presented with information about the environmental, animal welfare, and food safety impacts of organic and conventional beef production. Two online discrete choice experiments were used to illicit respondents' beliefs and preferences for ground beef. Information treatments were then introduced to assess modification of belief parameters. We find information, particularly negative information, modified respondents' beliefs about the relationship between credence attributes and perceived quality. Correspondingly, willingness-to-pay for organic status on ground beef changed an average of -70.50% (22 cents) to +38.96% (52 cents) depending on information treatment provided.这项研究考察了当提供有关有机和传统牛肉生产对环境、动物福利和食品安全影响的信息时，人们对碎牛肉的信念和偏好的可塑性。两个在线离散选择实验被用来非法调查受访者对碎牛肉的信念和偏好。然后引入信息处理来评估信念参数的修改。我们发现信息，尤其是负面信息，改变了受访者对信用属性和感知质量之间关系的信念。相应地，根据所提供的信息处理，对碎牛肉有机状态的支付意愿平均从-70.50%（22 美分）变化到+38.96%（52 美分）。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/grounded-in-your-beefliefs-assessing-the-malleability-of-us-consumer-beliefs-about-ground-beef/9200C6883F06F098C2A0B768BC146D7FEvaluating Large Exogenous Shocks Using an Almost Nonlinear Equilibrium Displacement Model: Food Safety Regulations and Leafy Greens Production使用几乎非线性平衡位移模型评估大型外源冲击：食品安全法规和绿叶蔬菜生产Michael McCullough, Joseph Atwood, Gary Brester, Duncan MacEwanAbstract: The Food and Drug Administration (FDA) recently published a final rule regarding preharvest irrigation requirements for leafy greens production. We use an equilibrium displacement model (EDM) to quantify the effects of this policy. The model is modified to allow for nonlinear equilibrium trajectories. The results show that the FDA rule will cause North American leafy greens production to decline by 0.99% and farmgate prices to increase by 0.59%. A proposal to increase land buffer areas around confined animal feeding operations (CAFOs) and large composting sites would further increase leafy greens prices and reduce consumption.美国食品和药物管理局 (FDA) 最近发布了有关绿叶蔬菜生产采前灌溉要求的最终规则。我们使用均衡位移模型（EDM）来量化该政策的效果。该模型经过修改以允许非线性平衡轨迹。结果显示，FDA的规定将导致北美绿叶蔬菜产量下降0.99%，农场交货价格上涨0.59%。一项关于增加封闭式动物饲养场（CAFO）和大型堆肥场周围土地缓冲区的提议将进一步提高绿叶蔬菜的价格并减少消费。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/evaluating-large-exogenous-shocks-using-an-almost-nonlinear-equilibrium-displacement-model-food-safety-regulations-and-leafy-greens-production/3E95F73282F4E2CCA2BC7B9C5E621485The Loss Function of USDA Forecasters: Evidence from WASDE Animal Product Price Forecasts美国农业部预测员的损失函数：来自 WASDE 动物产品价格预测的证据Chad Fiechter, Siddhartha S. Bora, Todd H. KuetheAbstract: The loss function is a mathematical representation of the costs experienced by a forecaster when observed outcomes differ from what was predicted. Prior studies suggest that USDA forecasts are not optimal based on an assumed mean-zero quadratic loss function. This study proposes an alternative view of forecast evaluation, which assumes all USDA forecasts are produced to minimize the forecasters' costs, and searches for the dimensions of the loss function under which optimality holds. We illustrate the degree to which USDA loss functions vary across a series of WASDE price forecasts. A better understanding of USDA forecasters' costs will benefit forecasters and forecast users.损失函数是预测者在观察到的结果与预测不同时所经历的成本的数学表示。先前的研究表明，美国农业部基于假设的零均值二次损失函数的预测并不是最佳的。本研究提出了预测评估的另一种观点，假设美国农业部的所有预测都是为了最小化预测者的成本而产生的，并寻找最优性成立的损失函数的维度。我们说明了美国农业部损失函数在一系列 WASDE 价格预测中的变化程度。更好地了解美国农业部预报员的成本将使预报员和预报用户受益。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/loss-function-of-usda-forecasters-evidence-from-wasde-animal-product-price-forecasts/1E5AE60CD7165C4B3E241993E65247B8What Drives Tea Prices? Analyzing the Effects of Region, Certification, and Production Factors是什么推动了茶叶价格？分析地区、认证和生产因素的影响Szu-Yung Wang, Yi-Chen TsaiAbstract: Using an administrative nationwide dataset of 1,673 tea producers, this study examines the key factors that drive tea pricing. Empirical results indicate that price levels vary across production regions, tea varieties, altitude, and certification status. On average, black tea commands higher prices, while other teas (green, Oolong, and Baozhong) are typically lower. However, as a special local tea, Oriental Beauty (and other teas) has the highest price. The cultivation altitude and organic certification are significantly associated with price premiums. In summary, this study provides strong evidence to show that regional origin, growing conditions, and certification may greatly influence tea's market price, offering practical insights for producers and policymakers.本研究使用包含 1,673 家茶叶生产商的全国行政数据集，研究了推动茶叶定价的关键因素。实证结果表明，价格水平因产区、茶叶品种、海拔和认证状态而异。平均而言，红茶的价格较高，而其他茶（绿茶、乌龙茶和包种茶）的价格通常较低。但作为当地特有的茶叶，东方美人（及其他茶叶）的价格最高。种植海拔和有机认证与价格溢价显着相关。总之，这项研究提供了强有力的证据，表明区域原产地、生长条件和认证可能极大地影响茶叶的市场价格，为生产者和政策制定者提供了实用的见解。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/what-drives-tea-prices-analyzing-the-effects-of-region-certification-and-production-factors/94D9EBC4695114B00BA00FB441B5281BHousehold Food Expenditures and Dietary Diversity in Mexico: The Role of Income, Urbanization, and Region墨西哥家庭食品支出和饮食多样性：收入、城市化和地区的作用Shashika D. Rathnayaka, Cesar Revoredo-GihaAbstract: This study examines how income, location and regional disparities are associated with food expenditure and dietary diversity in Mexico. Using household expenditure data and an entropy-based approach, we confirm Engel's Law: food budget shares decline with income but do so unevenly across urban-rural areas and regions. Consistent with the Engel curve for variety, wealthier households diversify their diets, spending more on high-value foods, while poorer rural households remain reliant on staples. Quantile regression shows that income has the strongest positive effect on diversity at lower quantiles, with diminishing returns at higher levels. Household characteristics, education, region, and food prices further influence diet. The results thereby underscore the need for income-sensitive food policies that account for regional disparities.本研究探讨了墨西哥的收入、地点和地区差异与食品支出和饮食多样性之间的关系。利用家庭支出数据和基于熵的方法，我们证实了恩格尔定律：食品预算份额随着收入的增加而下降，但城乡地区和地区的下降幅度不均匀。与恩格尔多样化曲线一致，富裕家庭的饮食多样化，在高价值食品上的支出更多，而贫困的农村家庭仍然依赖主食。分位数回归表明，收入对较低分位数的多样性具有最强的积极影响，而在较高分位数时收益递减。家庭特征、教育程度、地区和食品价格进一步影响饮食。因此，结果强调需要制定对收入敏感的粮食政策，并考虑到区域差异。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/household-food-expenditures-and-dietary-diversity-in-mexico-the-role-of-income-urbanization-and-region/514E48E85AEA2662CCD170317975699FTax Incidence on Cropland and Pastureland Rental RatesKatherine L. Welch, Notie Lansford, Dayton M. LambertAbstract: This analysis estimates the tax incidence for leased cropland and pastureland in Oklahoma. Periodic adjustments to agricultural land taxes may lead to an incidence, a share of the property tax burden, passed on to renters as higher rental rates. This pass-through can discourage rental activity, limit renters' access to land, and jeopardize broader agricultural development goals. There was a statistically significant increase in the incidence for cropland and pastureland renters. The combined pastureland and cropland incidence over the study period was $7.83 million, representing 22% of the total current agricultural use value assessment for the same period.该分析估计了俄克拉荷马州租赁农田和牧场的税收发生率。农业土地税的定期调整可能会导致财产税负担的一部分作为更高的租金转嫁给租户。这种转嫁可能会阻碍租赁活动，限制租赁者获得土地，并危及更广泛的农业发展目标。农田和牧场租用者的发病率在统计上显着增加。研究期间牧场和农田的总发生率为 783 万美元，占同期当前农业使用价值评估总额的 22%。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/tax-incidence-on-cropland-and-pastureland-rental-rates/BCBCB900D582801DF65A034C7D51A207Unintended Innovation Consequences of Skirting the Environmental Regulation: Evidence from the Food Processing Industry in China规避环境法规的意外创新后果：来自中国食品加工业的证据Falin Sun, Xiangwen Kong, Peibin Hou, Huanguang QiuAbstract: This paper uses China's 2016 Pollutant Discharge Permits System (PDPS) to evaluate its impact on innovation in the food processing industry. We begin by exploring the entry and exit decisions of food processing firms. The findings suggest that stricter environmental enforcement following the PDPS leads to decreased local firm entry but increased neighboring firm entry, indicating that new firms tend to locate in neighboring regions with less stringent regulations. Building upon this pattern, we argue that the PDPS's positive impact on firm innovation is primarily driven by increased industry agglomeration - a dynamic directly stimulated by heterogeneous regulatory pressures.本文利用中国2016年的排污许可证制度（PDPS）来评估其对食品加工行业创新的影响。我们首先探讨食品加工企业的进入和退出决策。研究结果表明，PDPS 后更严格的环境执法导致本地企业进入减少，但邻近企业进入增加，这表明新企业倾向于落户监管不太严格的邻近地区。基于这种模式，我们认为 PDPS 对企业创新的积极影响主要是由行业集聚的增加驱动的——这是由异质监管压力直接刺激的动态。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/unintended-innovation-consequences-of-skirting-the-environmental-regulation-evidence-from-the-food-processing-industry-in-china/652F4BE261C106C61795431144CFD133Soil Characteristics and Crop Insurance LossesBarry K. Goodwin, Roderick M. Rejesus, Serkan AglasanAbstract: We consider the relationship between soil characteristics and crop insurance losses. Note that crop insurance losses are typically considered to be a reliable measure of overall yield risk. Our results indicate that several soil characteristics linked to erosion are related to overall loss ratios in the federal crop insurance program. If premium rates adequately account for the risks associated with soil characteristics, there should be no relationship between loss ratios and soil characteristics. Thus, our results indicate that gains in the accuracy of insurance premium rates may be achievable from a greater focus on soil characteristics. We also consider the relationship of specific hazards with soil characteristics and find that different soil factors have varied relationships with distinct hazards.我们考虑土壤特性与农作物保险损失之间的关系。请注意，农作物保险损失通常被认为是衡量总体产量风险的可靠指标。我们的结果表明，与侵蚀相关的几个土壤特征与联邦农作物保险计划中的总体损失率有关。如果保险费率充分考虑了与土壤特性相关的风险，那么损失率和土壤特性之间就不应该有任何关系。因此，我们的结果表明，通过更加关注土壤特征，可以提高保险费率的准确性。我们还考虑了特定危害与土壤特征的关系，发现不同的土壤因素与不同的危害有不同的关系。全文链接：https://www.cambridge.org/core/journals/journal-of-agricultural-and-applied-economics/article/soil-characteristics-and-crop-insurance-losses/B95036D1ACC7E7D8551CB8F27C48D5A5
10个月宝宝每天需要喝多少奶粉？
