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Mapping global value chain participation and positioning in agriculture and food: stylised facts, empirical evidence and critical issues 绘制全球价值链参与和定位在农业和食品:程式化的事实,经验证据和关键问题
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-08-30 DOI: 10.36253/bae-12558
S. Nenci, Ilaria Fusacchia, A. Giunta, P. Montalbano, C. Pietrobelli
This paper aims to overview the recent body of empirical work on the importance of Global Value Chains (GVCs) in international production and trade. We begin by reviewing different approaches and levels of GVC analysis. We then consider developments in methods and data. Focusing on the agriculture and food sector, we present a map of GVC measures - at the country and sectoral level - computed using trade in value added data to allow researchers to better assess the countries’ engagement in GVCs. We also apply this data to show some stylized facts on GVC participation and positioning in agriculture and food and provide empirical evidence of the economic impact of the GVCs on these sectors. We conclude with some critical issues and speculative thoughts regarding the future of GVCs.
本文旨在概述最近关于全球价值链(GVCs)在国际生产和贸易中的重要性的实证工作。我们首先回顾全球价值链分析的不同方法和层次。然后我们考虑方法和数据的发展。我们以农业和粮食部门为重点,在国家和部门层面提出了全球价值链措施的地图,利用增加值贸易数据进行计算,使研究人员能够更好地评估各国参与全球价值链的情况。我们还应用这些数据来显示全球价值链在农业和粮食领域参与和定位的一些程式化事实,并提供全球价值链对这些部门的经济影响的经验证据。最后,我们提出了一些关于全球价值链未来的关键问题和思辨。
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引用次数: 1
On the relationships among durum wheat yields and weather conditions: evidence from Apulia region, Southern Italy 论硬粒小麦产量与天气条件的关系:来自意大利南部普利亚地区的证据
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-08-30 DOI: 10.36253/bae-12160
M. Tappi, G. Nardone, F. Santeramo
The weather index-based insurances may help farmers to cope with climate risks overcoming the most common issues of traditional insurances. However, the weather index-based insurances present the limit of the basis risk: a significant yield loss may occur although the weather index does not trigger the indemnification, or a compensation may be granted even if there has not been a yield loss. Our investigation, conducted on Apulia region (Southern Italy), aimed at deepening the knowledge on the linkages between durum wheat yields and weather events, i.e., the working principles of weather index-based insurances, occurring in susceptible phenological phases. We found several connections among weather and yields and highlight the need to collect more refined data to catch further relationships. We conclude opening a reflection on how the stakeholders may make use of publicly available data to design effective weather crop insurances.
基于天气指数的保险可以帮助农民应对气候风险,克服传统保险最常见的问题。然而,以天气指数为基础的保险存在基差风险的限制:即使天气指数没有触发赔偿,也可能发生重大的收益损失,或者即使没有收益损失,也可能获得赔偿。我们的调查是在意大利南部的普利亚地区进行的,目的是加深对硬质小麦产量与天气事件之间联系的认识,即在易受影响的物候阶段发生的基于天气指数的保险的工作原理。我们发现了天气和产量之间的一些联系,并强调需要收集更精确的数据来捕捉进一步的关系。最后,我们对利益相关者如何利用公开数据来设计有效的气象作物保险进行了反思。
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引用次数: 6
A choice model-based analysis of diversification in organic and conventional farms 基于选择模型的有机农场和传统农场多样化分析
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-08-30 DOI: 10.36253/bae-12206
A. Bonfiglio, C. Abitabile, R. Henke
Diversification is a polymorphic strategy to increase agricultural income and reduce the risks deriving from the surrounding environment. This strategy can also be successfully adopted in the context of organic farming. However, there is a lack of confirmation in this regard given the scarcity of studies that explicitly focus on diversification in organic farms. The objective of this paper is to analyse the influence of some territorial, socio-economic, and political factors on the probability of diversifying in both organic and conventional farms. To this aim, multinomial and binary logit models are applied to the Italian case. Results suggest that on-farm diversification requires specific competences and adequate organization. However, the reasons for diversifying differ depending on the production model. In conventional farming, farmers diversify to achieve income levels comparable with those of a more competitive agriculture. Conversely, for organic farmers, diversification represents an integrated part of the production model to take advantage of synergies between organic production and diversification. From these results, some policy implications are drawn.  
多样化是一种增加农业收入和降低周边环境风险的多态战略。这一策略也可以成功地应用于有机农业。然而,由于缺乏明确关注有机农场多样化的研究,在这方面缺乏证实。本文的目的是分析一些地域、社会经济和政治因素对有机农场和传统农场多样化可能性的影响。为此目的,多项和二元logit模型应用于意大利的情况。结果表明,农场多样化需要特定的能力和适当的组织。然而,多样化的原因因生产模式的不同而不同。在传统农业中,农民多样化以达到与更具竞争力的农业相当的收入水平。相反,对于有机农民来说,多样化是生产模式的一个组成部分,可以利用有机生产和多样化之间的协同效应。从这些结果中可以得出一些政策启示。
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引用次数: 0
Agriculture, food and global value chains: issues, methods and challenges 农业、粮食和全球价值链:问题、方法和挑战
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-08-30 DOI: 10.36253/bae-13517
M. Scoppola
About one-third of trade in food and agriculture takes place within global value chains (GVC). Coffee, palm oil or biofuels production are examples of the modern organization of agri-food production through GVC (de Becker, Miroudot, 2014; Greenville et al., 2016; Baliè et al., 2019). Agricultural raw materials nowadays may cross borders many times before reaching the final consumers, as they are embedded in intermediate and processed goods which are produced in different countries. Agri-food GVC are typically characterized by a strong coordination between farmers, food processors or traders, and between processors and retailers. Value chain coordination can be initiated by downstream buyers, such as supermarkets and food processors, or by upstream suppliers including farmers or farmer cooperatives (Swinnen and Maertens, 2007; Reardon et al 2007). In a number of cases, a group of “lead firms” plays a critical role by defining the terms of supply chain membership and whom the value is added (Scoppola, 2021).  The growth of the agri-food GVC raises new issues for the agricultural and food sectors. Participating to the GVC is expected to have several positive effects, both for countries and farmers, in terms of technology and knowledge spillovers, increased productivity, growth, employment opportunities, and ultimately increase of farmers’ income. On the other hand, market concentration in agri-food GVC raises concerns related to the emergence of market power (Swinnen, Vandeplas, 2014). Further, there are concerns that producing for agri-food GVC may result in the intensification of agricultural production, with negative environmental effects in terms of deployment of natural resources and water stress. Sound knowledge and evidence about the nature and implications of modern agri-food GVC are relevant for policymaker, firms and civil society. The economic analysis of agri-food GVC challenges agricultural and food economists in several respects. The complex nature of GVC and of the issues they raise makes it essential the use of new and multiple lens of analysis (World Bank, 2020). Country-level (macro) approaches to GVC are needed to investigate the drivers of the world-wide fragmentation of agri-food production and the welfare implications of countries participating to GVC. Recent progresses in the empirical trade analysis of GVC are certainly fundamental to the understanding of agri-food GVC. Industry level (meso) approaches are needed to investigate the relationship among the various stages of the GVC. Analytical tools and approaches from the industrial organization literature are to be used to investigate issues such the price transmission along the agri-food GVC, the drivers of vertical coordination or the distributions of benefits along the GVC. A firm level approach (micro) is needed to investigate the implications of the participation to GVC for farmers.  The 10th AIEAA Annual Conference contributes to this debate, by putting together diff
在从理论中提出一些基本见解之后,主题演讲将通过回顾与理论一致的实证模型以及新实证产业组织文献中开发的方法来解决如何检测市场力量程度的问题。越来越多地使用高度详细的零售(“扫描仪”)数据表明,食品行业(零售、制造和加工)是价格变化的主要来源,而且它还以越来越微妙的方式调节食品链其他部分产生的价格信号;作者的结论是,农业和食品经济学家应该警惕,不要仅仅根据价格对竞争环境进行过多的推断。Miet Maertens题为“非洲全球和当地食品价值链回顾:供应链联系和可持续性”的主题演讲强调了农业食品全球价值链在低收入和中等收入国家的扩张,以及全球价值链如何通过制度、技术和商业创新迅速实现现代化。虽然大量文献关注参与全球价值链对发展的影响,但低收入和中等收入国家当地食品供应链的发展受到的关注较少。该报告评估了非洲国家全球价值链和当地价值链之间的潜在联系,以及供应链创新的可持续性成果。主题演讲强调,市场竞争以及对土地、劳动力、水和其他资源的竞争可能会在全球和当地粮食价值链的发展之间造成负面联系。溢出效应,如投资、技术或制度溢出效应,可以在供应链发展过程中创造积极的联系和互补性。这种联系的存在在很大程度上取决于作物类型以及供应链的结构和组织,并对社会经济和环境的可持续性产生重要影响。
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引用次数: 3
Pesticides, crop choices and changes in well-being 农药,作物选择和福祉的变化
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-08-30 DOI: 10.36253/bae-10310
G. Gios, Stefano Farinelli, F. Kheiraoui, F. Martini, Jacopo Gabriele Orlando
This study investigates how Pesticide Risk Indicators (PRIs) can be applied to help develop sound economic policies. We modified one of the numerous PRIs proposed over the years, the Environmental Impact Quotient (EIQ), originally developed for the fruit industry, to consider co-formulants and adjuvants. The new formula includes three components representing the externalities of farm worker risk, consumer risk, and ecological risk. It also considers the potential externalities of the use of pesticides on residents living near the farms where these products are used. We applied the modified EIQ to two areas located in central Italy (the Chiana Valley in Tuscany and the Tiber and Upper Tiber Valleys in Tuscany/Umbria), surveying a sample of farms to determine the quantity and types of pesticides used on five crops: durum wheat, soft wheat, corn, tobacco, and olives. After calculating the impact quotient, we used data from a survey conducted in a different Italian region regarding the willingness to pay (WTP) for a pesticide-free environment and determined the WTP for even minimal changes in that quotient. Using those results, we simulated the changes in welfare (calculated as changes in willingness to pay) that would result from modifying the amount of land used for each crop. Our findings indicate that the proposed WTP indicator may have broad utility and that its application may lead to enhanced awareness of the consequences of pesticide use in farming. 
本研究探讨了如何应用农药风险指标(pri)来帮助制定合理的经济政策。我们修改了多年来提出的众多PRIs之一,最初为水果行业开发的环境影响商数(EIQ),以考虑共配方剂和佐剂。新公式包括三个组成部分,分别代表农场工人风险、消费者风险和生态风险的外部性。它还考虑了在使用这些产品的农场附近居住的居民使用杀虫剂的潜在外部性。我们将改进后的EIQ应用于意大利中部的两个地区(托斯卡纳的奇亚纳山谷和托斯卡纳/翁布里亚的台伯河流域和上台伯河流域),调查了农场样本,以确定五种作物(硬粒小麦、软质小麦、玉米、烟草和橄榄)杀虫剂的数量和类型。在计算了影响商数之后,我们使用了在意大利不同地区进行的关于无农药环境的支付意愿(WTP)的调查数据,并确定了即使该商数变化最小的WTP。利用这些结果,我们模拟了由于改变每种作物的土地使用量而导致的福利变化(以支付意愿的变化计算)。我们的研究结果表明,提出的WTP指标可能具有广泛的效用,它的应用可能会提高人们对农业中农药使用后果的认识。
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引用次数: 2
Financial performance of connected Agribusiness activities in Italian agriculture 意大利农业中相关农业综合企业活动的财务绩效
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-08-30 DOI: 10.36253/bae-12211
G. Dono, Rebecca Buttinelli, R. Cortignani
The Rural Development Policy combines measures that favour the growth of the productive dimension of farms and their specialization, and measures aimed at supporting diversification paths, with the expansion of the productive functions performed. The evaluation of the economic and financial results of farms engaged in activities of the second type can help to calibrate the intervention between the two options. To this end, we have studied a constant sample of FADN farms in the period 2014-2016, identifying the units engaged in organic farming or other forms of quality production, or engaged in direct sales or processing of their products or, again, in the management of farmhouses. We discuss the condition of financial sustainability of the farms involved in those activities by evaluating their ability to generate cash flows to offset for the depreciation of the farm production system. We used the ratio Free Cash Flow on Equity on Depreciation to compare the results of farms engaged in those activities and farms which are limited to conventional agriculture. The analysis of this comparison and of some structural, technical, and economic characteristics of the farms involved in those types of activities resulted in various considerations on their characteristics and conditions of financial sustainability. Our attention has focused above all on the financial results of farms within the sectors of Italian agriculture in greater financial difficulty. The main objective was, in fact, to verify whether to diversify the farm’s commitment with these activities has contributed to improving the financial sustainability in those agricultural sectors. Various considerations have arisen that can help fine-tune policies to support the types of diversification examined in this study.
《农村发展政策》结合了有利于农场生产规模增长及其专业化的措施,以及旨在支持多样化道路的措施,同时扩大所执行的生产职能。对从事第二类活动的农场的经济和财务结果进行评估,有助于在两种选择之间调整干预措施。为此,我们研究了2014-2016年期间FADN农场的恒定样本,确定了从事有机农业或其他形式的优质生产,或直接销售或加工其产品或再次从事农舍管理的单位。我们通过评估农场产生现金流以抵消农场生产系统折旧的能力,来讨论参与这些活动的农场的财务可持续性状况。我们使用自由现金流对折旧权益的比率来比较从事这些活动的农场和仅限于传统农业的农场的结果。对这种比较以及参与这类活动的农场的一些结构、技术和经济特征的分析,导致对其特征和财政可持续性条件的各种考虑。我们的注意力首先集中在财政困难较大的意大利农业部门内农场的财务结果上。事实上,主要目标是核查农场对这些活动的承诺多样化是否有助于改善这些农业部门的财政可持续性。已经出现了各种各样的考虑,可以帮助调整政策,以支持本研究中审查的各种多样化。
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引用次数: 3
Land tenure and property rights, and the impacts on adoption of climate-smart practices among smallholder farmers in selected agro-ecologies in Nigeria 土地使用权和产权,以及对尼日利亚选定农业生态地区小农采用气候智能型做法的影响
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-07-20 DOI: 10.36253/bae-9992
M. Kehinde, A. Shittu, M. Ogunnaike, F. Oyawole, O. Fapojuwo
This study investigates the effects of land tenure and property rights (LTPRs) on smallholder farmers’ adoption of climate-smart practices (CSPs) among cereal farming households in Nigeria. The data were collected from maize and rice farmers in a Nation-wide Farm Household Survey conducted across the six geopolitical zones in Nigeria. Data collected were analysed within the framework of Multivariate Probit to determine the factors that facilitate and/or impede the adoption of CSPs. The results showed that the adoption of CSPs considered in this study – agroforestry, zero/minimum tillage, farmyard manure, crop rotation and residue retention - were generally low. Empirical analysis showed that farmers with transfer right were more likely to adopt farmyard manure, crop rotation and residue retention while the likelihood of adopting agroforestry reduced with having transfer right. The coefficient of de jure secure increased the likelihood of adopting zero/minimum tillage while the coefficient of control right increased the likelihood of adopting agroforestry. Again, we found that the adoption of zero/minimum tillage reduced with control and transfer rights. The study also contributes to the existing literature on adoption by recognizing the interdependence between different climate-smart practices as well as jointly analyse the decision to adopt multiple CSPs. The study therefore, suggests that governments, in whom the responsibility for land use policy reform lies, review the existing framework to ensure a prompt, fair, and efficient land tenure system.
本研究调查了土地使用权和产权(ltpr)对尼日利亚谷物农户中小农采用气候智能型做法(csp)的影响。这些数据是在尼日利亚六个地缘政治区域进行的全国农户调查中从种植玉米和种植水稻的农民中收集的。收集的数据在多元概率分析框架内进行分析,以确定促进和/或阻碍采用csp的因素。结果表明,本研究中考虑的csp(农林业、免耕/免耕、农家肥、轮作和残茬保留)的采用率普遍较低。实证分析表明,拥有转让权的农户更倾向于采用农家肥、轮作和残茬保留,而拥有转让权的农户采用农林业的可能性降低。法律安全系数增加了采用零/最少耕作的可能性,控制权系数增加了采用农林业的可能性。我们再次发现,随着控制权和转让权的增加,零/最少耕作的采用减少了。该研究还认识到不同气候智能型实践之间的相互依存关系,并对采用多种csp的决策进行了联合分析,从而对现有的采用文献做出了贡献。因此,该研究建议负有土地使用政策改革责任的各国政府审查现有框架,以确保建立一个迅速、公平和有效的土地权属制度。
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引用次数: 3
Causal inference on the impact of nutrition policies using observational data 利用观测数据对营养政策影响进行因果推断
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-07-20 DOI: 10.36253/bae-12411
M. Mazzocchi, S. Capacci, Beatrice Biondi
We discuss the state-of-the-art in the application of quasi-experimental methods to estimate the impact of nutrition policies based on observational data. This field of application is less mature compared to other settings, especially labour and health policy, as food economists have started to implement widely counterfactual methods only over the last decade. We review the underlying assumptions behind the most prominent methods, when they can be regarded as credible and if/when they can be tested. We especially focus on the problem of dealing with unobserved confounding factors, emphasizing recent evidence on the limitations of propensity score methods, and the hard task of convincing reviewers about the quality of instrumental variables. We discuss the application of Difference-in-Difference, with an emphasis on its potential in consumer panel data applications, and how results from Regression Discontinuity Design studies should be interpreted. Finally, we cover the estimation of counterfactual outcomes using structural methods and provide an overview of recent developments and current gaps.
我们讨论了应用准实验方法来估计基于观测数据的营养政策影响的最新进展。与其他环境相比,特别是与劳工和卫生政策相比,这一应用领域还不太成熟,因为食品经济学家只是在过去十年才开始实施广泛违反事实的方法。我们回顾了最突出的方法背后的基本假设,当它们可以被认为是可信的,如果/当它们可以被测试。我们特别关注处理未观察到的混杂因素的问题,强调倾向评分方法局限性的最新证据,以及说服审稿人关于工具变量质量的艰巨任务。我们讨论了差异中的差异的应用,重点是其在消费者面板数据应用中的潜力,以及如何解释回归不连续设计研究的结果。最后,我们介绍了使用结构方法对反事实结果的估计,并概述了最近的发展和当前的差距。
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引用次数: 2
Italian farms during the COVID-19 pandemic: main problems and future perspectives. A direct analysis through the italian FADN COVID-19大流行期间的意大利农场:主要问题和未来展望通过意大利FADN的直接分析
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-07-20 DOI: 10.36253/bae-9552
L. Cesaro, A. Giampaolo, F. Giarè, R. Sardone, A. Scardera, L. Viganò
The spread of the COVID-19 virus in Italy during the first phasis of the pandemic (February-May 2020) has caused a large-scale crisis, with an almost immediate decrease of industrial production and a consequent contraction in domestic consumption and external trade. However, the issue of food security was immediately recognized as one of the most sensitive, so that the Government has decreed the priority role of the food system, which has been included among those considered fundamental services and economically essential, allowing the related activities to be carried out during the lockdown. Agricultural production activities transformation, and commercialization remained fully operative during the lockdown; nevertheless, the sector has faced many difficulties related to the contraction of some of the marketing channels (restaurants, on farm sales, agritourism, problems with the logistics and many other ones). To better understand the effects of the initial phasis of the pandemic on the Italian agricultural sector and provide useful information to the government and decision makers, a survey was carried out with a CAWI (Computer Assisted Web Interviewing) sent to over 10,000 farmers belonging to the sample of the Farm Accountancy Data Network (FADN). The number of respondents has been of 733 farms, which represents around 7% of the Italian FADN sample. The results of the questionnaire have been matched with FADN data on the structure and the economic performance of farms, allowing a more precise evaluation of the condition and effects of the pandemic. The results highlight a relevant effect of the COVID-19 pandemic emergency on the agricultural sector: 37% of the interviewed farmers declared a significant liquidity crisis, while 60% predicted a contraction in turnover. These effects are more relevant for the wine, olives, and horticulture types of farming and more frequent in medium/large farms. A better situation has been found for farms which usually outsource processing and/or marketing/sale of the products.
在大流行的第一阶段(2020年2月至5月),COVID-19病毒在意大利的传播引发了一场大规模危机,工业生产几乎立即下降,国内消费和对外贸易随之萎缩。然而,粮食安全问题立即被认为是最敏感的问题之一,因此政府颁布了粮食系统的优先作用,粮食系统已被列入被认为是基本服务和经济上必不可少的服务,允许在封锁期间开展相关活动。封锁期间,农业生产活动转型和商业化全面开展;然而,由于一些销售渠道(餐馆、农场销售、农业旅游、物流问题和许多其他问题)的收缩,该部门面临许多困难。为了更好地了解大流行初期阶段对意大利农业部门的影响,并向政府和决策者提供有用的信息,对属于农场会计数据网络(FADN)样本的10,000多名农民进行了一项CAWI(计算机辅助网络访谈)调查。733个农场参与了调查,约占意大利FADN样本的7%。调查问卷的结果与粮农组织关于农场结构和经济绩效的数据相匹配,从而能够更准确地评估疫情的状况和影响。调查结果突出了2019冠状病毒病大流行紧急情况对农业部门的相关影响:37%的受访农民宣布出现严重的流动性危机,而60%的农民预计营业额将收缩。这些影响与葡萄酒,橄榄和园艺类型的农业更为相关,并且在中型/大型农场中更为常见。对于那些通常外包加工和/或营销/销售产品的农场来说,情况要好一些。
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引用次数: 3
The Role of Energy on the Price Volatility of Fruits and Vegetables: Evidence from Turkey 能源对水果和蔬菜价格波动的作用:来自土耳其的证据
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-07-20 DOI: 10.36253/bae-10896
H. Uçak, Esin Yelgen, Yakup Arı
In agricultural economics, fluctuations in food prices and the factors affecting these fluctuations have always been an important research topic. From production to delivery to consumers, the supply chain of agricultural products has a dynamic structure with continuous changes. In this dynamic process, analyzing the intensive use of energy at each stage has gained more importance with its deepening effects in comparison to the past. This study will empirically explore the volatility spillovers between energy price index and fruit-vegetables price index in the period of 2007-2020 in Turkey using the Kanas and Diebold-Yilmaz approaches. According to the results obtained from the Kanas approach in the study, it has been observed that there is a statistically significant volatility spillover from the energy price index to the vegetable price index, whereas there is no statistically significant volatility spillover to the fruit price index. This finding was supported by the results obtained from the Diebold-Yilmaz approach showing that there is a volatility spillover of 13.52% to the vegetable price index and 0.86% to the fruit price index from the energy price index.
在农业经济学中,食品价格波动及其影响因素一直是一个重要的研究课题。农产品供应链从生产到交付再到消费者,是一个不断变化的动态结构。在这一动态过程中,分析各个阶段的能源集约利用,随着其影响的不断深化,显得越来越重要。本研究将运用Kanas和Diebold-Yilmaz方法实证探讨2007-2020年土耳其能源价格指数和果蔬价格指数之间的波动溢出效应。根据研究中利用卡纳斯方法得到的结果,可以观察到能源价格指数对蔬菜价格指数的波动溢出在统计上显著,而对水果价格指数的波动溢出在统计上不显著。这一发现得到了Diebold-Yilmaz方法的支持,该方法的结果表明,能源价格指数对蔬菜价格指数和水果价格指数的波动溢出率分别为13.52%和0.86%。
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引用次数: 1
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