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Impacts of fertilizer subsidy reform options in Iran: an assessment using a Regional Crop Programming model 伊朗肥料补贴改革方案的影响:使用区域作物规划模型的评估
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-07-20 DOI: 10.36253/bae-10981
M. Aghabeygi, K. Louhichi, S. Gomez y Paloma
The aim of this paper is to assess the potential impacts of different fertilizer subsidy reform options on the performance of the Iranian crops production sector. This is achieved using a Regional Crop Programming (RCP) model, based on Positive Mathematical Programming, which includes in total 14 crop activities and encompasses 31 administrative regions. The RCP model is a collection of micro-economic models, working with exogenous prices, each representing the optimal crop allocation at the regional level. The model is calibrated against observed data on crop acreage, yield responses to nitrogen application, and exogenous supply elasticities. Simulation results show that a total removal of nitrogen fertilizer subsidies would affect the competitiveness of crops with the highest nitrogen application rates and lead to a slight reduction of national agricultural income, at approximately 1%. This effect, which is more pronounced at the regional level, is driven by area reallocation rather than land productivity. The reallocation of nitrogen fertilizer subsidy to only strategic crops boost their production and income but increase disparity among regions and affects negatively welfare compared to the current universal fertilizer program. The transfer efficiency analysis shows that both target and universal simulated options are inefficient with an efficiency score below one.
本文的目的是评估不同肥料补贴改革方案对伊朗作物生产部门绩效的潜在影响。这是通过基于正数学规划的区域作物规划(RCP)模型实现的,该模型总共包括14种作物活动,涵盖31个行政区域。RCP模型是考虑外生价格的微观经济模型的集合,每个模型都代表区域一级的最佳作物分配。该模型是根据观察到的作物面积、对氮肥施用的产量反应和外源供应弹性等数据进行校准的。模拟结果表明,完全取消氮肥补贴将影响施氮量最高的作物的竞争力,导致国民农业收入轻微减少,约为1%。这种影响在区域一级更为明显,是由区域再分配而不是土地生产力驱动的。与目前的普遍施肥计划相比,将氮肥补贴重新分配给战略性作物,提高了作物的产量和收入,但增加了地区之间的差距,并对福利产生了负面影响。转移效率分析表明,目标和通用模拟方案都是低效的,效率得分低于1。
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引用次数: 0
The effect of attribute framing on consumers’ attitudes and intentions toward food: A Meta-analysis 属性框架对消费者食品态度和意向的影响:一项元分析
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-03-31 DOI: 10.36253/bae-11511
I. Dolgopolova, Bingqing Li, Helena Pirhonen, J. Roosen
This paper analyzes the existing literature on the effect of attribute framing on consumers’ attitudes and intentions with regard to food products. Attribute framing includes a broader interpretation of gains and losses when a product attribute is presented in a dichotomous way, such as fat vs. lean or harm vs. benefit. Meta-analysis results for the whole sample indicate that product attributes framed as gains have a higher effect on attitudes and intentions than product attributes framed as losses. Grouping studies by outcome variables, the meta-analysis demonstrates a larger effect size for studies that assess consumer attitude while for studies dealing with consumer intention, the effect size is close to zero and insignificant. We observe from the meta-regression results that the gain frame, the use of interaction terms, a specific product, and a student sample significantly influence consumers’ attitudes and intentions. 
本文分析了属性框架对消费者对食品的态度和意向的影响的现有文献。当产品属性以二分法呈现时,属性框架包括对收益和损失的更广泛的解释,例如胖与瘦或有害与有益。整个样本的荟萃分析结果表明,作为收益的产品属性对态度和意图的影响高于作为损失的产品属性。通过结果变量分组研究,荟萃分析表明,对于评估消费者态度的研究,效应量更大,而对于处理消费者意向的研究,效应量接近于零且不显著。我们从元回归结果中观察到,增益框架、交互术语的使用、特定产品和学生样本显著影响消费者的态度和意图。
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引用次数: 11
Rural areas between locality and global networks. Local development mechanisms and the role of policies empowering rural actors 地区和全球网络之间的农村地区。地方发展机制和赋予农村行为者权力的政策的作用
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-03-31 DOI: 10.36253/bae-12364
Francesco Mantino
The main objective of this work is to review the recent achievements on the mechanisms explaining local and rural development, which underpin the current definition of rural areas in the European literature. The analysis carried out in this article acknowledges a gap between local development processes and the current representation of rural diversity by international organisations and national/regional authorities. New concepts can be drawn from this comparative analysis: 1) rural diversity cannot be explained exclusively by agglomeration forces and geographical distance from urban centres; b) multiple functions of rural areas, often rooted into sustainable agri-food systems or other forms of territorial capital, contribute to explain more autonomous roles of rural areas; c) organised or relational proximity is emerging in a context of a globalised economy and non-geographical networks, as a critical factor of connection between rural areas and distant regions/markets. This article translates these different disciplinary developments into a practical and integrated conceptual approach, in which local development processes result from three components: local resource systems, networks, institutions and enabling policies.
这项工作的主要目的是回顾最近在解释地方和农村发展的机制方面取得的成就,这是欧洲文献中当前农村地区定义的基础。本文进行的分析承认,地方发展进程与国际组织和国家/地区当局目前对农村多样性的代表之间存在差距。从这种比较分析中可以得出新的概念:1)农村多样性不能完全用集聚力和与城市中心的地理距离来解释;B)农村地区的多种功能,往往植根于可持续农业粮食系统或其他形式的领土资本,有助于解释农村地区更自主的作用;C)在经济全球化和非地理网络的背景下,作为农村地区与遥远地区/市场之间联系的关键因素,有组织的或关系的接近性正在出现。本文将这些不同的学科发展转化为一种实用的、综合的概念方法,在这种方法中,地方发展过程源于三个组成部分:地方资源系统、网络、机构和扶持政策。
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引用次数: 4
Sustainable water resources management under population growth and agricultural development in the Kheirabad river basin, Iran 伊朗Kheirabad河流域人口增长和农业发展下的可持续水资源管理
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-03-31 DOI: 10.36253/bae-10465
G. Layani, M. Bakhshoodeh, M. Zibaei, D. Viaggi
In this study, an integrated system dynamics model was developed for scenario analysis in sub-sectors of the Kheirabad River Basin in southwestern Iran where managing water resources is seriously challenging due to population growth and periodic drought. Afterward, the variability of water demand and supply under baseline scenario and different water demand management policies, including water conservation and water pricing, was evaluated. Findings illustrated that with increasing population and cropland area if no further demand management policies were implemented, the total water demand and withdrawal of water resources increase by more than 0.75% annually. The annual surface water availability during 2018-2030 is expected to decrease by around -1.23%. Under these circumstances, the sustainability index of the water resources system is equal to 0.703, indicating that the water system would not be able to meet the total water demand in the near future. However, the water resource sustainability index increases significantly by improving irrigation efficiency and changing crop patterns at the basin. Also, the reduction in per capita water demand and domestic water pricing under the competition structure would help to improve the sustainability index to 0.963 and 0.749, respectively.
在这项研究中,开发了一个综合系统动力学模型,用于伊朗西南部Kheirabad河流域子部门的情景分析,该地区由于人口增长和周期性干旱,水资源管理面临严重挑战。随后,对基线情景和不同的水需求管理政策(包括节水和水价)下的水供需变异性进行了评价。研究结果表明,随着人口和耕地面积的增加,如果不采取进一步的需求管理政策,水资源的总需水量和取水量每年增加超过0.75%。2018-2030年,年地表水可用性预计将减少约1.23%。在这种情况下,水资源系统的可持续性指数为0.703,表明该水系统在近期内无法满足总需水量。然而,通过提高灌溉效率和改变流域作物格局,水资源可持续性指数显著增加。在竞争结构下,人均用水需求和生活用水价格的降低有助于将可持续性指数分别提高到0.963和0.749。
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引用次数: 4
Understanding the bioeconomy: a new sustainability economy in British and European public discourse 理解生物经济:英国和欧洲公共话语中的一种新的可持续经济
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-03-31 DOI: 10.36253/bae-9534
Irene Sotiropoulou, P. Deutz
Over the past decade, the term bioeconomy has emerged in both policy and academic discourse. Implying a technology-driven approach to wealth generation from organic materials, the term has taken hold with so far limited critical engagement. It is a contestable rather than contested term. Noting the rise of numerous other ‘economies’ (blue, green, circular) on a similar timeframe, this paper undertakes a critical discourse analysis of academic literature and UK/EU policy documents using the term ‘bioeconomy’ to produce a contextualised understanding of how it is used in both theoretical and practical contexts. Our analysis shows that bioeconomy, as with the other ‘sustainability’ economies, which we term the ‘S-economies’, prioritises the economy and the markets as the solution brokers for the environmental and economic problems they seek to address. The apparent fragmentation of the theory and policy concerning the environmental sustainability of economic activity is expressed through the variability of terms that aspire to establish multiple economies functioning at the same time. Limited empirical analysis of the existing ‘bioeconomy’ is symptomatic of the dissociation between theory and practice, emphasizing technological approaches favouring capital intensive approaches over local solutions. The S-economies, including the bioeconomy, are an attempt to bypass economic structural realities that otherwise would need to be addressed.
在过去的十年里,生物经济这个术语在政策和学术话语中都出现了。这一术语暗示了一种技术驱动的方法,即通过有机材料创造财富,但迄今为止,评论界的参与度有限。这是一个有争议而不是有争议的术语。注意到许多其他“经济体”(蓝色、绿色、圆形)在类似时间框架内的崛起,本文对使用“生物经济”一词的学术文献和英国/欧盟政策文件进行了批判性话语分析,以产生对其如何在理论和实践环境中使用的语境化理解。我们的分析表明,生物经济与其他“可持续性”经济(我们称之为“s -经济”)一样,优先考虑经济和市场,作为它们寻求解决的环境和经济问题的解决方案经纪人。关于经济活动的环境可持续性的理论和政策的明显分裂,表现在渴望建立同时运作的多种经济的术语的可变性上。对现有“生物经济”的有限实证分析是理论与实践分离的症状,强调技术方法偏爱资本密集型方法而不是地方解决方案。s型经济,包括生物经济,是一种绕过经济结构现实的尝试,否则就需要解决这些现实。
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引用次数: 3
The distributors’ view on US wine consumer preferences. A discrete choice experiment 经销商对美国葡萄酒消费者偏好的看法。离散选择实验
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-03-31 DOI: 10.36253/bae-10801
L. Lourenço-Gomes, T. Gonçalves, J. Rebelo
This study explored the view that distributors have towards the most valued wine attributes by consumers in the US market, applying the discrete choice experiments technique. Furthermore, to explore the extent to which the distributors’ perspective may reflect consumers’ preferences, the results are analyzed considering previous evidence with consumers in the same market. The results from a scaled multinomial logit, mixed logit and generalized logit models reveal similarities with consumer studies’ findings, especially for the influence of medals/awards, the origin of the wine, grape variety, and price, and it also identifies possible trends in the market. This evidence suggests that data collected using the knowledge and experience of wine distributors generates valuable information through a smaller sample at a lower cost than through applying consumer surveys, which is relevant in large markets with a higher number of consumers.
本研究运用离散选择实验技术,探讨了经销商对美国市场消费者最看重的葡萄酒属性的看法。此外,为了探索经销商的观点在多大程度上反映了消费者的偏好,我们将考虑到同一市场中消费者的先前证据,对结果进行了分析。比例多项式logit、混合logit和广义logit模型的结果与消费者研究的结果相似,特别是在奖牌/奖项、葡萄酒原产地、葡萄品种和价格的影响方面,它也确定了市场可能的趋势。这一证据表明,利用葡萄酒经销商的知识和经验收集的数据,通过更小的样本,以更低的成本产生有价值的信息,而不是通过应用消费者调查,这与拥有更多消费者的大市场相关。
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引用次数: 0
Drinking Covid-19 away: wine consumption during the first lockdown in Italy 喝掉Covid-19:意大利第一次封锁期间的葡萄酒消费
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-01-11 DOI: 10.36253/bae-10044
Giulia Gastaldello, Daniele Mozzato, L. Rossetto
In Italy, wine is an integral part of most people’s habits and lifestyles. The advent of a traumatic event like the Covid pandemic brought profound changes to people’s lives: economic instability and normality disruption led consumers to revise their priorities and modify their consumption and purchase behavior. This study analyses the impact of socio-demographic, psychological, and context-related modifications induced by the pandemic on wine consumption and purchase patterns. Participants completed an online, structured survey, and the sample is constituted by Italian wine consumers. Logistic regression and descriptive techniques are applied to analyze data. Results highlight that wine consumption is a deeply rooted habit among Italian consumers, which resisted the great context modifications that occurred with the pandemic. Moreover, changes in wine consumption are connected to that of other alcoholic beverages. Significant short-term and potential long-term effects are discussed. Information collected is paramount to understanding wine consumers’ reactions and behavioral changes induced by the pandemic and effectively plan marketing strategies during new infection peaks.
在意大利,葡萄酒是大多数人习惯和生活方式中不可或缺的一部分。像新冠疫情这样的创伤性事件的出现给人们的生活带来了深刻的变化:经济不稳定和正常生活的中断导致消费者改变了他们的优先事项,改变了他们的消费和购买行为。本研究分析了疫情对葡萄酒消费和购买模式的社会人口、心理和情境相关变化的影响。参与者完成了一份在线结构化调查,样本由意大利葡萄酒消费者组成。逻辑回归和描述技术应用于分析数据。结果强调,葡萄酒消费是意大利消费者根深蒂固的习惯,这抵制了大流行发生的巨大背景变化。此外,葡萄酒消费量的变化与其他酒精饮料的消费量有关。讨论了显著的短期影响和潜在的长期影响。收集到的信息对于了解葡萄酒消费者对疫情的反应和行为变化,以及在新的感染高峰期间有效地制定营销策略至关重要。
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引用次数: 3
Estimating a global MAIDADS demand system considering demography, climate and norms 估计考虑人口、气候和规范的全球MAIDADS需求系统
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-01-11 DOI: 10.36253/bae-10488
W. Britz
Based on data mainly from the International Comparison Program for 156 countries, we conduct a global cross-sectional estimation of an extended rank-3 MAIDADS demand system for nineteen commodity groups including agri-food detail for integration in a Computable General Equilibrium model. We render both marginal budget shares and commitment terms depending on the implicit utility level and consider age shares on the population, the Gini-Coefficient, the share of Islamic population, a sea access indicator and mean temperatures as further explanatory variables. We find that especially demographic factors, the share of Islamic population and mean temperature considerably improve model selection statistics and the fit of commodity groups with a low fit in a variant where prices and income only are used. Graphics of the estimated Engel curves, with details for agro-food commodity groups, highlight income dynamics of budget shares.
基于主要来自156个国家的国际比较计划的数据,我们对包括农业食品细节在内的19个商品组的扩展排名3的MAIDADS需求系统进行了全球横截面估计,以便将其整合到可计算的一般均衡模型中。我们根据隐含效用水平来呈现边际预算份额和承诺条款,并考虑人口的年龄份额、基尼系数、伊斯兰人口的份额、海上通道指标和平均温度作为进一步的解释变量。我们发现,特别是人口因素,伊斯兰人口的份额和平均温度大大改善了模型选择统计和商品组的拟合,在仅使用价格和收入的变量中,商品组的拟合度较低。估计恩格尔曲线的图形,以及农产品商品组的细节,突出了预算份额的收入动态。
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引用次数: 0
The Bioeconomy in economic literature: looking back, looking ahead 经济学文献中的生物经济学:回顾与展望
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-01-11 DOI: 10.36253/bae-10881
D. Viaggi, F. Bartolini, M. Raggi
The objective of this paper is to provide a review of recent economic literature related to the Bioeconomy, in particular aimed at identifying relevant pathways for future research in this field. The paper is organised in four main parts. First, we illustrate the economic role of the Bioeconomy and its key statistics in the EU. Second we review economic topics related to the Bioeconomy production in a mainly private (company, consumer, market) perspective. Then we extend our attention to the review of wider social and environmental aspects with a focus on ecosystem services. Finally, we discuss the interplay of the above topics and cross cutting issues in the attempt to identify the most promising pathways for further research. While the economic literature is growing fast in all the fields of the Bioeconomy, we highlight in particular the need of more economic research focusing on transitions and innovation. However, we also highlight the need to take a system perspective and accounting explicitly for the trade-offs among the many objectives that the Bioeconomy is expected to target and to better account of the costs and benefits affecting different stakeholder groups.
本文的目的是对最近与生物经济相关的经济学文献进行综述,特别是旨在确定该领域未来研究的相关途径。本文主要分为四个部分。首先,我们说明了生物经济的经济作用及其在欧盟的主要统计数据。其次,我们主要从私人(公司、消费者、市场)的角度回顾与生物经济生产相关的经济主题。然后,我们将注意力扩展到更广泛的社会和环境方面的审查,重点是生态系统服务。最后,我们讨论了上述主题的相互作用和交叉问题,试图确定最有希望进一步研究的途径。虽然生物经济各个领域的经济文献都在快速增长,但我们特别强调需要更多关注转型和创新的经济研究。然而,我们也强调需要采取系统的观点,明确地计算生物经济预期目标的许多目标之间的权衡,并更好地计算影响不同利益相关者群体的成本和收益。
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引用次数: 4
The evolution of organic market between third-party certification and participatory guarantee systems 第三方认证与参与式担保制度之间有机市场的演变
IF 1.4 Q2 Economics, Econometrics and Finance Pub Date : 2022-01-11 DOI: 10.36253/bae-10470
Gianluca Iannucci, G. Sacchi
Quality assurance is a dominant feature of organic production and, currently, third-party certification is recognized as the official authenticity assurance strategy by the majority of worldwide organic regulations. This model, however, is less accessible to smallholders because it is costly and its application time-consuming. Furthermore, this certification system has been accused on several fronts to be responsible for the standardization of the organic production process leading to a “conventionalization” of organic productions. Contextually, in several countries, groups of small producers have started to implement alternative quality assurance systems for their organic products, better known as Participatory Guarantee Systems. Research to date has not yet determined how these models can survive within a highly competitive market such as that of certification. In this framework, the paper aims to theoretically unveil and explain the alternative certification phenomenon and its coexistence with third-party certification by applying an evolutionary game (rationally bounded agents that adopt the more rewarding strategy). The results of simulations suggest that symbolic attributes such as localness, healthiness, quality, producers and consumers embeddedness can differentiate products guaranteed by alternative schemes, meeting consumers’ preference. The discussion of findings provides an assessment of the performance of both quality assurance systems, explain their coexistence within the organic market, identify critical aspects, and suggest some policy implications.
质量保证是有机生产的主要特征,目前,第三方认证被世界上大多数有机法规认可为官方的真实性保证策略。然而,这种模式对小农来说不太容易获得,因为它成本高昂且应用耗时。此外,这一认证体系在几个方面被指责对有机生产过程的标准化负责,导致有机生产的“常规化”。具体而言,在一些国家,小生产者团体已开始为其有机产品实施另一种质量保证制度,更广为人知的是参与性保证制度。迄今为止的研究尚未确定这些模式如何在认证等竞争激烈的市场中生存下来。在此框架下,本文旨在通过应用进化博弈(采用更有回报策略的理性有限代理),从理论上揭示和解释替代认证现象及其与第三方认证的共存。仿真结果表明,局部性、健康性、质量、生产者和消费者嵌入性等符号属性可以区分不同方案担保的产品,满足消费者的偏好。对研究结果的讨论提供了对两种质量保证体系绩效的评估,解释了它们在有机市场中的共存,确定了关键方面,并提出了一些政策建议。
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引用次数: 3
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Bio-based and Applied Economics
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