学术前沿｜国际top期刊中“食品农产品市场”方面的最新文章
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。
三农大数据·交流社群旨在为三农相关领域学者提供一个交流学习的平台，群内定期分享三农领域前沿资讯。
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1Consumers’ valuation for food traceability in China:Does trust matter?
中国消费者对食品可追溯性的评价：信任重要吗?[1]
作者：Ruifeng Liu,ZhifengGao,Rodolfo M.NaygaJr,Heather ArielleSnell,HengyunMa
发表日期：《Food Policy》,October 2019
摘要（中英文）：Food safety is a very important topic in China.We investigate Chinese consumers’ preferences and willingness to pay (WTP) for food traceability using a choice experiment.Given that consumers’ trust in the food system may affect their preferences and WTP,we also assess the interaction between consumers’ trust in government’s supervision of food safety and food labels and consumers’ preferences for traceable food products.Using data collected from a choice experiment on Fuji apples in a face-to-face survey in six Chinese cities,the results show that (i) consumers are willing to pay for traceable food but their valuations can differ upon the degree of their trust in government’s supervision of food safety and food labels;(ii) consumers are willing to pay for traceability with strong evidence of preference heterogeneity;(iii) government is not the most trusted safety inspection and certificate authority as found in prior studies using animal food products in China.
在中国，食品安全是一个非常重要的话题。通过选择实验，我们调查了中国消费者对食品可追溯性的偏好和支付意愿。考虑到消费者对食品体系的信任可能会影响他们的偏好和支付意愿（WTP），我们还评估了消费者对政府食品安全监管和食品标签的信任与消费者对可追溯食品的偏好之间的相互作用。本文运用在中国六城市面对面调查的有关富士苹果的选择实验进行分析,结果表明，（i）消费者对可追溯食品愿意支付，但他们对于政府的食品安全监管和食品标签有不同的信任程度；（ii）消费者愿意为具有强烈偏好异质性证据进行可追溯性付费；（iii）在中国以往的动物食品研究中发现，政府并不是最值得信赖的安全检查和认证机构。
关键词（中英文）：Choice experiment;Interaction effects;Fuji apple products;Willingness to pay;Chinese consumer
选择实验；交互效应；富士苹果；支付意愿；中国消费者
期刊介绍：《Food Policy》（《粮食政策》）是一份多学科期刊，最新影响因子为2.382，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。
2The Heterogeneous Effects of Standards on Agricultural Trade Flows
标准对农产品贸易流动的异质效应[2]
作者：Dela-Dem Doe Fiankor,Oliver-Ken Haase,Bernhard Brümmer
发表日期：《Journal of agricultural economics》 ,September 2020
摘要（中英文）：This article uses a theory-based translog gravity model to investigate the heterogeneous effects of food standards on aggregate agricultural trade.We revisit the ‘standards-as-barriers-to-trade’ debate with a distinctive twist.In contrast to existing works,we show that standards reduce trade but even more so for countries that trade smaller volumes.Our identification strategy exploits the within-country variation in specific trade concerns.We confirm that stricter importer standards are indeed trade-restrictive.However,the estimated trade cost elasticity varies depending on how intensively two countries trade.Specifically,it decreases in magnitude with an increasing import share of the exporter in the importing country's total imports.The reason is simple but intuitive;bigger trading partners find it more profitable to invest in meeting the costs of importer-specific standards.This work is novel in showing that the standards–tradedebate misses out on an important heterogeneity driven by existing import shares.Liberalising non-tariff measures will favour smaller trading partners more than well-established ones.
本文采用一个基于理论的超越对数重力模型来研究食品标准对农业贸易总量的异质性影响。我们以一种独特的方式重新讨论了“标准即贸易壁垒”的争论。与现有的工作相反，我们发现标准减少了贸易并且对贸易量较小的国家来说更是如此。我们的识别策略利用了特定贸易关注的国内差异。我们确认严格的进口标准确实限制了贸易。但是，估计的贸易成本弹性取决于两国贸易的密集程度。具体来说，随着出口国在进口国进口总额中所占份额的增加，所估计的贸易成本弹性的数值会下降。原因简单且直观；更大的贸易伙伴发现投资满足特定进口商标准的成本更有利可图。这项工作的新颖之处在于，它表明标准与贸易之争忽略了由现有进口份额驱动的重要异质性。开放非关税措施将有利于较小的贸易伙伴，而不是成熟的贸易伙伴。
关键词（中英文）：Agricultural trade; food standards; specific trade concerns; translog gravity model
农产品贸易；食品标准；特定的贸易问题；超对数重力模型
期刊介绍：《Journal of agricultural economics》（《农业经济学杂志》）是国际领先的专业期刊，为农业经济学和相关学科(如统计学、市场营销、企业管理、政治学、历史学和社会学)的研究，以及农业、食品和相关行业问题的应用提供论坛;农村社区和环境.影响因子3.581。
3Non-tariff measures and productivity of Ukrainian food-processing firms
乌克兰食品加工企业的非关税措施和生产率[3]
作者：Oleksandr Shepotylo,Volodymyr Vakhitov,Veronika Movchan,Mariia Panga
发表日期：《Journal of agricultural economics》 ,September 2020
摘要（中英文）：Using detailed data on veterinary,ecological,sanitary,phytosanitary and mandatory certification measures,this paper studies the effect of non-tariff measures (NTMs) on firm productivity in the food-processing industry through forward and backward linkages.Using quantity and value of output at product level,we calculate and compare quantity- and revenue-based measures of total factor productivity (TFP).Exploiting the episode of NTM liberalisation in Ukraine in 2008–2012,we find that NTMs on intermediate inputs have a negative effect on quantity-based TFP.Other trade policy variables, including input tariffs and output NTMs also negatively influence productivity.The effect on the revenue-based TFP is weaker due to price and quality adjustments.Interacting changes in input NTMs with import intensity prior to trade liberalisation,we find that firms that used imported inputs more intensively tend to have lower long-run TFP growth.
本文使用有关兽医、生态、卫生、植物检疫和强制性认证措施的详细数据，通过前向和后向联系研究了非关税措施 (NTM) 对食品加工业企业生产力的影响。使用产品级别的产出数量和价值，我们计算和比较基于数量和收入的全要素生产率 (TFP) 衡量标准。利用乌克兰 2008-2012 年非关税措施自由化的事件，我们发现中间投入的非关税措施对基于数量的 TFP 有负面影响。其他贸易政策变量，包括投入关税和产出非关税措施，也对生产率产生负面影响。由于价格和质量调整，对基于收入的 TFP 的影响较弱。在贸易自由化之前，输入非关税措施的变化与进口强度的相互作用，我们发现，更密集地使用进口投入的企业往往具有较低的长期 TFP 增长。
关键词（中英文）：food industry; non- tariff measures; production function; productivity; TFP
食品工业; 非关税措施；生产函数；生产率; 全要素生产率
期刊介绍：《Journal of agricultural economics》（《农业经济学杂志》）是国际领先的专业期刊，为农业经济学和相关学科(如统计学、市场营销、企业管理、政治学、历史学和社会学)的研究，以及农业、食品和相关行业问题的应用提供论坛;农村社区和环境.影响因子3.581。
4Competition and Relational Contracts in the Rwanda Coffee Chain
卢旺达咖啡连锁店的竞争以及其关系合同[4]
作者：Rocco Macchiavello,Ameet Morjaria
发表日期：《THE QUARTERLY JOURNAL OF ECONOMICS》,May 2021
摘要（中英文）：Howdoes competition affect market outcomes when formal contracts are notenforceable,and parties resort to relational contracts?Difficulties with measuring relational contacts and dealing with the endogeneity of competition have frustrated attempts to answer this question. We make progress by studying relational contracts between up-stream farmers and downstream mills in Rwanda'scoffee industry.First,we identify salient dimensions of their relationalcontracts (unenforceable provision of services in both directions before,during and after harvest) and measure them through an original survey of millsand farmers.Second,we take advantage of an engineering model for the optimalplacement of mills to construct an instrument that isolates geographically determinedvariation in competition.Conditional on the suitability for mills within the catchmentarea,we find that mills surrounded by more suitable areas:(i) face more competitionfrom other mills;(ii) use fewer relational contracts with farmers;and (iii) exhibitworse performance.In contrast to conventional wisdom,an additional competingmill also (iv) makes farmers worse off;(v) reduces the aggregate quantity ofcoffee supplied to mills by farmers;and (vi) conditional on the farmer'sdistance from the mill,lowers relational contracts more for farmers close to he competing mill,suggesting that competition directly alters farmers temptationto renege on the relational contract.The finding that increased competitiondownstream leaves all producers——including upstream producers——no better-offsuggests a potential role for policy in a second-best environment in whichcontracts are hard to enforce.
当正式合同不可执行，各方诉诸关系合同时，竞争如何影响市场结果？如何衡量关系契约和处理竞争的内生性方面的困难使回答这个问题难以进行。我们通过研究卢旺达咖啡产业的上游农民和下游工厂之间的关系合同取得了进展。首先，我们确定了它们关系合同的显著维度（在收获前、收获期间和收获后无法执行的双向服务提供），并通过对磨坊和农民的原始调查来衡量它们。其次，我们利用最优布局的工程模型来构建模型，控制由地理位置导致的竞争变化。根据对集水区内咖啡磨坊进行的分析，我们发现咖啡磨坊目前处于的区域特征为：（i）面临更多来自其他磨坊的竞争；（ii）减少与农民的关系合同；（iii）与传统观点相反，另一家竞争工厂也会表现较差；（iv）减少农民向咖啡厂供应的咖啡总量；（v）会使得使农民的境况更糟；（vi）在农民与工厂距离的条件下，靠近竞争工厂的农民更容易降低关系契约，这表明竞争直接改变了农民违背关系契约的动机。研究发现，下游竞争加剧不会让所有生产商(包括上游生产商)的处境变得更好，这表明，在合同难以执行的次优环境中，政策可能发挥作用。
期刊介绍：《THE QUARTERLY JOURNAL OF ECONOMICS》（《经济学季刊》）是英文中最古老的经济学专业期刊。它由哈佛大学经济系编辑，涵盖该领域的所有方面。最新影响因子15.563。
5Viewpoint:Characterising early agricultural and food policy responses to the outbreak of COVID-19
观点：早期农业和食物政策应对COVID-19疫情的特征[5]
作者：Guillaume Gruère, Jonathan Brooks
发表日期：《Food Policy》,April 2021
摘要（中英文）：This article reviews and categorises early policy responses to the COVID-19 pandemic,based on a dataset of 496 measures taken by 54 countries between January 1 and April 28 and collected by the OECD from government officials and additional sources.Findings show a large diversity of measures,some of which were urgent and necessary,some that may continue to be beneficial once the pandemic has subsided,while others are potentially disruptive for the functioning of markets or damaging for the environment.National allocations of measures show differences between developed OECD countries,which used more agriculture or support related measures,and emerging economies,which focused on trade policies,information provision or food assistance.A minimum USD 47.6 billion was allocated by OECD governments to the agriculture and food sector,mostly in the form of domestic food assistance and support to agriculture and the food chain.
本文基于1月1日至4月28日经合组织从政府官员和其他来源收集的54个国家采取的496项措施的数据集，对COVID-19大流行的早期政策应对措施进行了回顾和分类。调查结果显示，采取了多种多样的措施，其中一些是紧急和必要的，一些可能在大流行消退后继续有益，而其他一些可能对市场的运作有破坏性或对环境造成破坏。各国对措施的分配显示出经合组织发达国家和新兴经济体之间的差异，前者更多地使用农业或支持农业相关的措施，后者侧重于贸易政策、信息提供或食物援助。经合组织各国政府向农业和食物部门拨出了至少476亿美元，主要是以国内食物援助和支持农业和食物链的形式。
关键词（中英文）：Agriculture policy;Food policy;COVID-19
农业政策；食物政策；新冠疫情
期刊介绍：《Food Policy》（《粮食政策》）是一份多学科期刊，发表有关发展中国家、转型国家和发达经济体粮食部门政策制定、实施和评估问题的原始研究和新证据。影响因子4.552。
6A ‘Common Food Policy’ for Europe: How governance reforms can spark a shift to healthy diets and sustainable food systems
欧洲的“共同粮食政策”：治理改革如何推动向健康饮食和可持续粮食体系的转变[6]
作者：Olivier De Schutter,Nick Jacobs,Chantal Clément
发表日期：《Food Policy》,October 2020
摘要（中英文）：More than half of adults in the European Union (EU) are now either overweight or obese (53%).Non-communicable diseases (NCDs),many of which are diet-related, account for 70% of mortality in Europe and a growing share of healthcare costs.While eating habits have an important role to play in NCD prevention,consumption patterns across the EU are diverging significantly from recommended diets.There is growing consensus on the solution:a series of coordinated and wide-ranging policy interventions to build healthy 'food environments'.This article argues that EU governance structures remain ill-adapted to the systemic nature of this and other challenges in food systems (e.g. climate change,biodiversity loss,food poverty):conflicting objectives and missed synergies are identified between different policy areas (agriculture,trade,health,environment,etc.) and between different levels of governance (EU, national,local).An integrated food policy framework – a ‘Common Food Policy’ – is therefore required to meet the EU’s public health and sustainability objectives.It identifies four distinct aspects of the governance shift required to promote healthy diets and build sustainable food systems in Europe:(i) coherence across policy areas;(ii) coherence across governance levels;(iii) governance for transition;and (iv) food democracy. Blueprints for a Common Food Policy are already emerging,and are ripe for consideration,development,and implementation by the European institutions.
欧盟 (EU) 超过一半的成年人现在超重或肥胖 (53%)。其中许多非传染性疾病 (NCD)与饮食有关，占欧洲死亡率的 70%，而且占据了越来越多的医疗保健成本份额。虽然饮食习惯在预防 NCD 方面发挥着重要作用，但整个欧盟的消费模式与推荐的饮食有很大差别。人们逐渐就解决方案达成共识：采用一系列协调和广泛的政策干预措施来建立健康的“食品环境”。本文认为，欧盟的治理结构仍然无法适应粮食系统中关系系统性本质的这一问题和其他挑战 （例如气候变化、生物多样性丧失、食物贫困）：在不同的政策领域（农业、贸易、卫生、环境等）和不同的治理级别（欧盟、国家、地方）之间发现了相互冲突的目标和缺失的协同作用。因此，需要一个综合食物政策框架，即"共同食物政策"，以满足欧盟的公共卫生和可持续性目标。它确定了在欧洲促进健康饮食和建立可持续食物系统所需的治理转变的四个不同方面：（1）各政策领域的一致性；（2）各级治理的一致性；（3）过渡时期的管理；（4）食品民主。共同食物政策的蓝图已经出现，并且由欧洲各机构来考虑、发展和实施时机已经成熟。
关键词（中英文）：Food policy;Policy integration;Common food policy;Governance;Food and agriculture;Health
食物政策；政策整合；共同食物政策；治理；食物与农业；健康
期刊介绍：《Food Policy》（《粮食政策》）是一份多学科期刊，最新影响因子为2.382，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。
7Food Consumption and Food Security during the COVID-19 Pandemic in Addis Ababa
埃塞俄比亚首都亚的斯亚贝巴新冠肺炎大流行期间的食物消费和食物安全[7]
作者：Kalle Hirvonen, Alan de Brauw,Gashaw T. Abate
发表日期：《American Journal of Agricultural Economics》 ,23 February 2021
摘要（中英文）：International humanitarian organizations have expressed substantial concern about the potential for increases in food insecurity resulting from the COVID-19 pandemic.We use a unique panel survey of a representative sample households in Addis Ababa to study both food security and food consumption during the pandemic.In contrast to some other countries in the region, Ethiopia never went into a full lockdown severely restricting movement.Despite subjective income measures suggesting a large proportion of households have been exposed to job loss or reduced incomes,we find that relative to a survey conducted in August and September of 2019,food consumption and household dietary diversity are largely unchanged or slightly increased by August 2020.We find some changes in the composition of food consumption, but they are not related to shocks found in previous phone surveys conducted with the same households.The results therefore suggest the types of subjective questions about income typically being asked in COVID-19 phone surveys may not appropriately reflect the magnitude of such shocks.They also imply,at least indirectly, that in the aggregate food value chains have been resilient to the shock associated with the pandemic.
国际人道主义组织对COVID-19大流行可能导致粮食不安全状况增加表示非常关心。本文对亚的斯亚贝巴有代表性的家庭样本进行了独特的小组调查，以研究大流行期间的食物安全和食物消费。与东非的其他一些国家相比，埃塞俄比亚从未实施过严格限制出行的全面封锁。尽管主观收入度量表明很大一部分家庭面临失业或收入减少的风险，我们发现，相较于2019年8月和9月进行的一项调查，直到2020年8月食品消费和家庭饮食多样性基本没有变化或略有增加。我们发现食物消费的构成发生了一些变化，但它们与之前对同一户家庭进行的电话调查中发现的冲击无关。因此研究结果表明，COVID-19电话调查中通常会问到的关于收入的主观问题可能不能恰当地反映此类冲击的程度。它们还表明，至少间接表明，食物价值链对大致与大流行有关的冲击是具有弹性的。
关键词（中英文）：COVID-19;food consumption;food security;nutrition security
新冠疫情；食物消费；食物安全；营养安全
期刊介绍：《AJAE》全称为《American Journal of Agricultural Economics》（《美国农业经济学杂志》）旨在为世界各地的农业和食品经济学、自然资源和环境、以及农村和社区发展等领域的创造性学术工作讨论提供平台。最新影响因子为4.082，刊载方向为管理科学-农业经济与政策。
参考资料
中国消费者对食品可追溯性的评价：信任重要吗?: 文献链接：https://www.sciencedirect.com/science/article/pii/S0306919219305901；PDF：https://sci-hub.st/10.1016/j.foodpol.2019.101768
[2]标准对农产品贸易流动的异质效应: 文献链接：https://doi.org/10.1111/1477-9552.12405；PDF：https://sci-hub.st/10.1111/1477-9552.12405
[3]乌克兰食品加工企业的非关税措施和生产率: 文献链接：https://doi.org/10.1111/1477-9552.12451；PDF：https://sci-hub.st/10.1111/1477-9552.12451
[4]卢旺达咖啡连锁店的竞争以及其关系合同: 文献链接：https://doi.org/10.1093/qje/qjaa048
[5]观点：早期农业和食物政策应对COVID-19疫情的特征: 文献链接：https://doi.org/10.1016/j.foodpol.2020.102017
[6]欧洲的“共同粮食政策”：治理改革如何推动向健康饮食和可持续粮食体系的转变: 文献链接：https://www.sciencedirect.com/science/article/pii/S0306919220300336
[7]埃塞俄比亚首都亚的斯亚贝巴新冠肺炎大流行期间的食物消费和食物安全: 文献链接：https://doi.org/10.1111/ajae.12206
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