学术前沿 | 国际期刊中与“农产品市场”相关的文章

启研学社由知名学者担任学术顾问，由高校师生与企研数据科学团队联合组建的，是以大数据资源及相关技术助力中国学术、智库与行业研究为宗旨的研究组织。团队当前的主要目标是挖掘行政、经济与社会大数据资源在经济学学术、智库与相关行业研究领域中的应用价值，以学术研究为标准开展大数据治理研究，努力探索大数据分析技术融入中国经济社会研究的可行进路。 

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1Do farmers gain internet dividends from E-commerce adoption?Evidence from China

农民是否从电子商务中获得了互联网红利？来自中国的证据^[1]

作者：Xiaokang Li,Hongdong Guo,Songqing Jin,Wanglin Ma,YiwuZeng

发表日期：《Food Policy》, May 2021

摘要（中英文）：This study examines the effects of e-commerce adoption on household income,using survey data of 1,030 households in China.The combination of propensity score matching and difference-in-difference method is employed to address the sample selection bias associated with e-commerce adoption. The results show that ecommerce adopters obtain significantly higher income than non-adopters,and such a significant and large income gain is mainly contributed by the significant increase in sales income.E-commerce adoption has a significant and negative impact on wage income due to the labor substitution effect,while it affects transfer income insignificantly.Additional analysis reveals that the income effects of e-commerce adoption are heterogeneous across geographic locations and household-level characteristics.

本研究利用中国1030个家庭的调查数据，考察了电子商务采用对家庭收入的影响。结合倾向评分匹配和双重差分法来解决与电子商务采用相关的样本选择偏差。结果表明，电子商务采用者的收入显著高于非采用者，而这种显著且较大的收入增加主要来自销售收入的显著增加。由于劳动力替代效应，电子商务的采用对工资收入有显著的负向影响，而对转移收入的影响不显著。其他的分析显示，异质性的地理位置和家庭层面的特征会影响电子商务的收入。

关键词（中英文）:E-commerce adoption;Household income;PSM-DID;Rural China

电子商务采用；家庭收入；PSM-DID；中国农村

期刊介绍：《Food Policy》（《粮食政策》）最新影响因子为2.382，是一份多学科期刊，发表关于发展中国家、转型期国家和发达经济体食品部门政策制定、实施和评估问题的原创研究和新证据。本刊重点刊载食品政策的经济和社会方面的文章，优先考虑为国际食品政策辩论提供信息的实证研究。

2Optimal farmer’s income from farm products sales on live streaming with random rewards: Case from China’s rural revitalisation strategy

以随机奖励的直播方式销售农产品的最优农民收入：来自中国农村振兴战略的案例^[2]

作者：Peng Liangjun; Lu Gang; Pang Kai; Yao Qi

发表日期：《Computers and Electronics in Agriculture》,October 2021

摘要（中英文）：Increasing farmers’ income is one of the objectives of rural revitalisation in China. As a direct selling channel, live streaming has become immensely popular and demonstrated unprecedented growth worldwide. Farmers were able to increase their income by selling farm products on live streaming sales platforms, especially after the COVID-19 outbreak. With the support of online payment and smartphone technology, promotion methods are constantly innovated, among which random rewards are widely used on live streaming sales platforms. This study aimed to examine if and how random rewards optimise farmer’s income from live streaming sales. We observed that random rewards have a positive effect on optimising farmers’ income from live streaming sales, which was verified by mathematical proof and numerical analysis. The results show that there is a threshold that provides a normative guide to farmers on whether they should sell at a discounted price in live streaming sales with random rewards. More importantly, we found the mechanism of how random rewards maximise farmer’s income from live streaming sales. This study also provides suggestions of concrete actions for farmers and policy makers.

增加农民收入是中国农村振兴的目标之一。直播作为一种直销渠道，在全球范围内得到了极大的普及和空前的发展。农民能够通过在直播流媒体销售平台上销售农产品来增加收入，特别是在COVID-19爆发后。在网上支付和智能手机技术的支持下，促销方式不断创新，其中随机奖励被广泛运用在直播流媒体销售平台上。本研究旨在考察随机奖励是否以及如何优化农户直播流媒体销售的收入。我们观察到随机奖励对优化农户直播流销收入有积极作用，这一点通过数学证明和数值分析得到了验证。结果表明，在带随机奖励的直播流式销售中，存在一个门槛，对农户是否应该以折扣的价格进行销售提供了规范性指导。更重要的是，我们发现了随机奖励如何使农民从直播流媒体销售中获得的收入最大化的机制。本研究也为农民和政策制定者提供了具体行动建议。

关键词（中英文）:Live streaming sales; Random rewards; Farmers’ income; Newsvendor model; Risk aversion

直播销售；随机奖励；农民收入；报童模式；风险规避

期刊介绍：《Computers and Electronics in Agriculture》（农业计算机与电子）最新影响因子为5.565，该期刊提供了计算机硬件、软件、电子仪器和控制系统的开发和应用进展的国际报道，以解决农业问题，包括农学、园艺、林业、水产养殖和动物/畜牧业等方面。

3The Economic, Social, and Environmental Impacts of Farmers Markets: Recent Evidence from the US

农民市场的经济、社会和环境影响：近期来自美国的证据^[3]

作者：Warsaw Phillip; Archambault Steven; He Arden; Miller Stacy

发表日期：《Sustainability》,March 2021

摘要（中英文）：Farmers markets are regular, recurring gatherings at a common facility or area where farmers and ranchers directly sell a variety of fresh fruits, vegetables, and other locally grown farm products to consumers. Markets rebuild and maintain local and regional food systems, leading to an outsized impact on the food system relative to their share of produce sales. Previous research has demonstrated the multifaceted impacts that farmers markets have on the communities, particularly economically. Recent scholarship in the United States has expanded inquiry into social impacts that markets have on communities, including improving access to fresh food products and increasing awareness of the sustainable agricultural practices adopted by producers, as well developing tools for producers and market stakeholders to measure their impact on both producers and communities. This paper reviews the recent scholarship on farmers markets to identify recent trends and synthesizes the current evidence describing the ways in which farmers markets contribute to the wellbeing of their communities, as well as identifying areas for additional future research.

农贸市场是农民和牧场主直接向消费者销售各种新鲜水果、蔬菜和其他当地种植的农产品的共同设施或地区经常举行的集会。市场重建和维持当地和地区的粮食系统，导致相对于它们在农产品销售额中的份额，粮食系统受到超大的冲击。以往的研究表明，农民市场对社区的影响是多方面的，尤其是经济方面。美国最近的研究扩展了对市场对社区的社会影响的研究，包括改善生鲜食品的获取途径，提高生产者对可持续农业做法的认识，以及为生产者和市场利益相关者开发工具来衡量其对生产者和社区的影响。本文回顾了近期关于农民市场的研究，以识别近期的趋势，并综合了目前描述农民市场对其社区福利贡献方式的证据，以及识别未来进一步研究的领域。

关键词（中英文）:local food systems; public space; social capital; food access; economic impact; social impact; agroecological practices

当地粮食系统；公共空间; 社会资本; 食物获取；经济影响; 社会影响; 农业生态实践

期刊介绍：《Sustainability》最新影响因子为3.251，是一本关于人类环境、文化、经济和社会可持续性的国际、跨学科、学术、同行评审和开放获取期刊。

4Examining the role of border protectionism in border inspections: panel structural vector autoregression evidence from FDA import refusals on China's agricultural exports

检验边境保护主义在边境检查中的作用：来自FDA对中国农产品出口的进口拒绝的面板结构向量自回归证据^[4]

作者：Jiehong Zhou; Yu Wang; Rui Mao; Yuqing Zheng

发表日期：《China Agricultural Economic Review》,27 July 2021

摘要（中英文）：Purpose As technical barriers gradually become the important tools of trade protection, it is important to understand whether intensified enforcement of border controls is adopted as a hidden tool of trade protectionism and differs across periods and industries.Design/methodology/approachThis article applies a panel structural vector autoregression (PSVAR) model to investigate the potential role of trade protectionism motives in Food and Drug Administration (FDA) import refusals on China's agricultural exports, utilizing newly constructed monthly data at the industry level.FindingsThe results show that import refusal is mainly driven by the inspection history, highlighting the importance of the intrinsic product quality and maintaining an excellent inspection history in border inspection. The novel finding is that US employment contractions would also lead to a small increase in FDA import refusals, especially those taking place within ten months and made without sampling tests. Such an association is driven by industry-specific employment shocks and becomes stronger after the financial crisis. It is also more evident in industries where the US lacks competitiveness against China, being manufactured without mandatory safety regulations, and with negative skewness of employment growth.Originality/valueThis research is one of the preliminary attempts to understand whether the de facto border controls are worked as a hidden tool of protectionism to agricultural products, and what the specific trajectory and duration of the impacts at the monthly level. This study provides empirical evidence showing the role of protectionism motives in FDA import refusals and is heterogeneous across industries, which generate new insights and policy implications to predict and cope with additional barriers on agricultural trade.

目的随着技术壁垒逐渐成为贸易保护的重要工具,必须了解加强边境管制是否被当作贸易保护主义的隐蔽工具,并在不同时期和不同行业之间存在差异。设计/方法/途径本文运用面板结构向量自回归( PSVAR )模型,利用新构建的行业月度数据,考察贸易保护主义动机在食品药品监督管理局( FDA )进口拒绝对中国农产品出口的潜在作用。结果发现,进口拒绝主要由检验历史驱动,凸显了内在产品质量的重要性,并在边境检验中保持优秀的检验历史。新颖的发现是,美国的就业紧缩也会导致FDA进口拒绝的小幅增加,特别是那些在10个月内发生且未经抽样检验而做出的进口拒绝。这种关联是在行业特定的就业冲击驱动下产生的,并在金融危机后变得更强。这在美国缺乏对华竞争力、没有强制性安全法规生产、就业增长呈负偏态的行业也更为明显。本研究是初步尝试之一,目的是了解事实上的边境管制是否作为农产品保护主义的隐蔽工具,以及每月层面的具体影响轨迹和持续时间。这项研究提供了经验证据,证明了贸易保护主义动机在FDA进口拒绝中的作用,并且各行业之间存在异质性,这产生了新的见解和政策含义,以预测和应对农业贸易的额外障碍。

关键词（中英文）:Agricultural exports; FDA import refusals; PSVAR; Trade protectionism

农产品出口；FDA 进口拒绝；面板结构向量自回归; 贸易保护主义

期刊介绍：《China Agricultural Economic Review》（中国农业经济评论）最新影响因子为2.172，旨在发表适用于中国农业农村决策过程、农业经济学学科发展以及希望借鉴中国农业农村发展经验的发展中国家的研究。

5Impacts of COVID‐19 and Price Transmission in U.S. Meat Markets

COVID-19和美国肉类市场价格传导的影响^[5]

作者：Ramsey A. Ford; Goodwin Barry K.; Hahn William F.; Holt Matthew T

发表日期：《Agricultural Economics》, 04 May 2021

摘要（中英文）：Coronavirus 2019 (COVID‐19) has caused ongoing disruptions to U.S. meat markets via demand and supply‐side shocks. Abnormally high prices have been reported at retail outlets and meat packers have been accused of unfair business practices because of widening price spreads. Processing facilities have experienced COVID‐19 outbreaks resulting in shutdowns. Using weekly data on wholesale and retail prices of beef, pork, and poultry, we characterize the time series behavior and dynamic linkages of U.S. meat prices before the COVID‐19 pandemic. We model vertical price transmission using both linear and threshold autoregressive (AR) models and vector error correction (VEC) models. With the estimated models, we then compare price movements under COVID‐19 to model predictions. All three meat markets are well‐integrated and we observe unexpected, large price movements in April and May of 2020. Early COVID‐19 related shocks appear to be transitory with prices returning to expected levels at a pace consistent with the speed of transmission prior to the pandemic. This well‐functioning market process suggests a degree of resilience in U.S. meat supply chains.

2019 年冠状病毒 (COVID-19) 已通过需求和供应方面的冲击对美国肉类市场造成持续干扰。零售店报告的价格异常高，肉类包装商因价差扩大而被指责不公平的商业行为。加工设施经历了COVID - 19暴发导致停工。本文利用每周的牛肉、猪肉和家禽批发价格和零售价格数据,刻画了COVID - 19大流行前美国肉价的时间序列行为和动态联动关系。我们采用线性和门槛自回归( AR )模型以及向量误差修正( VEC )模型对垂直价格传导进行建模。结合估计模型,我们将COVID-19下的价格变动与模型预测进行比较。所有三个肉类市场都很好地整合在一起,我们观察到2020年4月和5月出乎意料的大幅价格变动。早期的COVID - 19相关冲击似乎是暂时的,价格以与大流行前传播速度一致的速度回到预期水平。这一良好运作的市场过程表明美国肉类供应链具有一定的弹性。

关键词（中英文）:beef; COVID‐19; pork; poultry; price transmission

牛肉; 新冠肺炎; 猪肉; 家禽; 价格传导

期刊介绍：《Agricultural Economics》（农业经济学）最新影响因子为2.585，涵盖最广泛意义上的农业经济学，从食品消费和营养到土地使用和环境，涵盖从家庭到市场和宏观经济的各个分析尺度。

参考资料

[1]

农民是否从电子商务中获得了互联网红利？来自中国的证据: 文献链接：https://www.sciencedirect.com/science/article/pii/S0306919221000026

[2]

以随机奖励的直播方式销售农产品的最优农民收入：来自中国农村振兴战略的案例: 文献链接：https://www.sciencedirect.com/science/article/abs/pii/S0168169921004208?via%3Dihub

[3]

农民市场的经济、社会和环境影响：近期来自美国的证据: 文献链接：https://www.mdpi.com/2071-1050/13/6/3423

[4]

检验边境保护主义在边境检查中的作用：来自FDA对中国农产品出口的进口拒绝的面板结构向量自回归证据: 文献链接：https://www.emerald.com/insight/content/doi/10.1108/CAER-09-2020-0215/full/html

[5]

COVID-19和美国肉类市场价格传导的影响: 文献链接：https://onlinelibrary.wiley.com/doi/10.1111/agec.12628

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