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Digital opportunities for the distribution of index-based microinsurance: Evidence from a discrete choice experiment in Mali 基于指数的小额保险分销的数字机遇:马里离散选择实验的证据
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-04-17 DOI: 10.1111/1477-9552.12584
Ella Kirchner, Oliver Musshoff

Index-based microinsurance is a promising risk management tool for smallholder farmers. Recently, several mobile-delivered insurance schemes have entered the market. Depending on the degree of digitisation of the product, farmers can learn about the insurance, register, pay premiums and receive payouts via a mobile phone. As cell phone usage and network coverage constantly increase, digitally enabled insurance distribution may overcome previous barriers for insurance adoption. Still, farmers' preferences for these products remain largely unknown. We address this knowledge gap by means of a discrete choice experiment applied to 499 maize farmers in Mali. The experiment presents an easy-to-understand multi-peril crop insurance linked to a greenness index. It focuses on attributes related to the distribution channel and product design. Using mixed logit models, we find that the insurance attributes enabled by mobile-delivery are attractive to farmers. Product bundles that include mobile-delivered weather information and agricultural advice in addition to the insurance policy or credit access increase the likelihood of farmers taking out insurance. Similarly, recommendations from fellow farmers increase interest in the insurance product. The results are highly relevant for future product improvements that are needed to increase adoption rates and ultimately realise the loss-hedging potential of microinsurance.

基于指数的小额保险对于小农来说是一种很有前景的风险管理工具。最近,一些移动交付的保险计划已进入市场。根据产品的数字化程度,农民可以通过手机了解保险、注册、支付保费和领取赔款。随着手机使用率和网络覆盖率的不断提高,数字化的保险分销可能会克服以往采用保险的障碍。然而,农民对这些产品的偏好在很大程度上仍是未知数。我们通过一项针对马里 499 位玉米种植农户的离散选择实验来填补这一知识空白。该实验介绍了一种与绿色指数挂钩的易懂的多风险农作物保险。实验重点关注与分销渠道和产品设计相关的属性。利用混合 logit 模型,我们发现移动交付所带来的保险属性对农民很有吸引力。除了保险单或信贷渠道外,还包括移动交付的天气信息和农业建议的产品捆绑会增加农民投保的可能性。同样,农民朋友的推荐也会提高对保险产品的兴趣。研究结果与未来的产品改进高度相关,这些改进是提高采用率并最终实现小额保险的损失对冲潜力所必需的。
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引用次数: 0
Potential impacts of the Common Agricultural Policy's Income Stabilisation Tool on farmers' incomes and crop diversity: A French case study 共同农业政策的收入稳定工具对农民收入和作物多样性的潜在影响:法国案例研究
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-04-02 DOI: 10.1111/1477-9552.12581
Kamel Louhichi, Daël Merisier

This paper analyses the potential impacts of a hypothetical implementation of the Income Stabilisation Tool (IST) in France for the field crops sector. The IST is a risk management tool available within the 2014–2020 Common Agricultural Policy (CAP) to support farmers facing a severe drop in their incomes. This analysis was conducted using a farm-level model relying on expected utility theory and based on positive mathematical programming with risk. The model was applied to a sample of 1375 field crop farms in France derived from Farm Accountancy Data Network (FADN) data. Simulation results show that the uptake rate of the tool is relatively low, less than 37% in all scenarios. It is strongly dependent on CAP public support and on how much premium farmers have to pay. Highest uptake rates are observed in farms specialising in Other Field Crops, such as potatoes, pulses and sugar beet, and farms located in regions highly exposed to climatic risks. Previous experience with insurance favours the acceptance of the IST. Model results also show that the IST improves adopters' income and reduces income inequality. However, its impacts on crop diversity, measured by the Shannon index, are negative.

本文分析了在法国大田作物领域假设实施收入稳定工具(IST)的潜在影响。收入稳定工具是 2014-2020 年共同农业政策(CAP)中的一项风险管理工具,旨在为面临收入严重下降的农民提供支持。该分析采用了一个农场层面的模型,该模型依赖于预期效用理论,并基于有风险的正数编程。该模型以法国 1375 个大田作物农场为样本,数据来源于农场会计数据网络(FADN)。模拟结果表明,该工具的使用率相对较低,在所有方案中均低于 37%。这在很大程度上取决于 CAP 的公共支持和农民必须支付的保险费。马铃薯、豆类和甜菜等其他大田作物专业农场以及位于气候风险高发地区的农场的采用率最高。以往的保险经验有利于对 IST 的接受。模型结果还显示,IST 提高了采用者的收入,减少了收入不平等。然而,用香农指数衡量,它对作物多样性的影响是负面的。
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引用次数: 0
Decomposing household income differences between farmers and non-farmers: Empirical evidence from Norway 分解农民与非农民之间的家庭收入差异:挪威的经验证据
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-29 DOI: 10.1111/1477-9552.12579
Klaus Mittenzwei, Helge Berglann, Øyvind Hoveid, Alan Matthews, Hugo Storm

Income comparisons between farm and non-farm households play a crucial role in many aspects of farm policy. Using household income data from tax returns of all Norwegian taxpayers in the period 2006–2015 we study these income differences. We find that the unconditional mean income is higher for farm households, but with important differences depending on the comparison group considered. We also find that the income difference is reduced when we control for differences in the personal characteristics of the different non-farm comparison sub-groups. This finding implies that income comparison using unconditional means, as frequently done in agricultural policy making, is potentially misleading. We also show that the income effect of personal characteristics is not the same for different comparison sub-groups, as has been assumed in previous studies of income disparities. Differences in personal characteristics, and the income effect of those characteristics, therefore need to be accounted for if income comparisons between farmers and non-farmers are to inform farm support policies.

农户和非农户之间的收入比较在农业政策的许多方面都起着至关重要的作用。我们利用2006-2015年间挪威所有纳税人纳税申报表中的家庭收入数据,对这些收入差异进行了研究。我们发现,农户的无条件平均收入较高,但根据所考虑的比较组而存在重大差异。我们还发现,当我们控制不同非农对比分组的个人特征差异时,收入差异会缩小。这一发现意味着,农业政策制定中经常使用的无条件平均值进行收入比较可能会产生误导。我们还表明,个人特征对不同比较分组的收入影响并不像以往的收入差距研究中所假设的那样相同。因此,如果要对农民和非农民的收入进行比较,并为农业支持政策提供依据,就必须考虑到个人特征的差异以及这些特征对收入的影响。
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引用次数: 0
Does the internet bring food prices closer together? Exploring search engine query data in Iran 互联网是否拉近了食品价格的距离?探索伊朗的搜索引擎查询数据
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-21 DOI: 10.1111/1477-9552.12580
Omid Zamani, Thomas Bittmann, Jens-Peter Loy

Modern communication technologies make information more easily and quickly accessible, leading to more transparent and competitive markets. Based on a theoretical model, this paper provides new empirical evidence on the potential impact of online search intensity on asymmetric cost pass-through. Prices often move as ‘rockets and feathers’: they rise quickly in response to cost increases and they fall slowly in response to cost reductions. A panel threshold error correction model is applied to weekly producer and retail prices of chicken and mutton in Iran. The results suggest that the volume of online searches is associated with a more complete and less asymmetric cost pass-through from farmgate to retail prices. Thus, online platforms and search engines have the potential to increase competition by bringing prices closer together and reducing profit margins.

现代通信技术使信息获取更加方便快捷,从而提高了市场的透明度和竞争力。本文基于一个理论模型,就在线搜索强度对非对称成本转嫁的潜在影响提供了新的经验证据。价格的变动往往像 "火箭和羽毛":成本上升时价格快速上升,成本下降时价格缓慢下降。本文将面板阈值误差修正模型应用于伊朗鸡肉和羊肉的每周生产和零售价格。结果表明,在线搜索量与从农场到零售价格的更完整、更不对称的成本传递有关。因此,在线平台和搜索引擎有可能通过拉近价格和降低利润率来增加竞争。
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引用次数: 0
Assessing the role of geographical indications in affecting the quality of imports 评估地理标志在影响进口产品质量方面的作用
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-18 DOI: 10.1111/1477-9552.12578
Cristina Vaquero Piñeiro, Daniele Curzi

Geographical indications (GIs) aim to protect the names of specific high-quality products (food and wine) to preserve and promote the uniqueness linked to their geographical origin and traditional know-how. EU and extra-EU countries register domestic products with GIs. This study disentangles the effects of such registrations on the quality of imports using country-level product import data for the fruit, vegetable, coffee, tea, and spice sectors. Our results show that the registration of domestic products as GIs enhances the quality of imported goods only if the importing country has a lower level of quality of domestic production. The introduction of GIs into high-quality domestic markets can discourage import quality upgrades. This is because domestic producers may prefer to compete for quality rather than price, and imported goods represent a less expensive alternative to high-quality national goods for consumers. Conversely, in countries where domestic product quality is lower, the introduction of GIs may enhance import quality upgrading because the diffusion of GIs induces domestic consumers to become more demanding in terms of quality for foreign products.

地理标志(GIs)旨在保护特定优质产品(食品和葡萄酒)的名称,以维护和促进与其地理来源和传统技术相关的独特性。欧盟和欧盟以外的国家都用地理标志注册本国产品。本研究利用水果、蔬菜、咖啡、茶叶和香料行业的国家级产品进口数据,分析了此类注册对进口产品质量的影响。我们的研究结果表明,只有在进口国国内生产质量水平较低的情况下,将国内产品注册为地理标志才能提高进口商品的质量。将地理标志引入高质量的国内市场会阻碍进口质量的提升。这是因为,国内生产商可能更愿意在质量而不是价格上竞争,而进口商品对消费者来说是高质量国内商品的一种价格较低的替代品。相反,在国内产品质量较低的国家,引入地理标志可能会促进进口质量升级,因为地理标志的传播会促使国内消费者对外国产品的质量提出更高的要求。
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引用次数: 0
Markups in US food manufacturing accounting for non-neutral productivity 美国食品制造业的加价与非中性生产率的关系
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-14 DOI: 10.1111/1477-9552.12575
Jordi Jaumandreu, Rigoberto Lopez

We examine the evolution of productivity and markups in US food and beverage manufacturing from 1959 through 2018. We account for non-Hicks-neutral (labour-augmenting) productivity changes and compare markups with those in general manufacturing using the same dataset and model. We also compare our results with those of the increasingly popular De Loecker and Warzynski (2012, American Economic Review, 102, 2437) method, which does not account for non-Hicks-neutral productivity growth. Empirical results show that productivity growth in the food and beverage sector has been relatively slow and driven with equal intensity by Hicks-neutral and labour-augmenting productivity gains. General manufacturing shows higher productivity growth that is mostly labour-augmenting, with markups comparable to those of food manufacturing. We find that accounting for labour-augmenting productivity produces more moderate markup estimates than the De Loecker and Warzynski (2012) method. We also find no evidence of markups rising in either food manufacturing or general manufacturing in the last 20 years, in contrast to much of the recent economic literature.

我们研究了美国食品和饮料制造业从 1959 年到 2018 年的生产率和加价演变。我们考虑了非希克斯中性(劳动力增加)生产率变化,并使用相同的数据集和模型将加价与一般制造业的加价进行了比较。我们还将我们的结果与日益流行的 De Loecker 和 Warzynski(2012 年,《美国经济评论》,102,2437)方法的结果进行了比较,后者没有考虑非希克斯中性的生产率增长。实证结果表明,食品和饮料行业的生产率增长相对缓慢,希克斯中性生产率增长和劳动增效生产率增长的驱动力相当。一般制造业的生产率增长较高,但主要是劳动改进型生产率增长,加价幅度与食品制造业相当。我们发现,与 De Loecker 和 Warzynski(2012 年)的方法相比,考虑劳动改进型生产率会产生更温和的加价估计值。我们还发现,在过去 20 年中,没有证据表明食品制造业或一般制造业的加价率上升,这与近期的许多经济文献形成了鲜明对比。
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引用次数: 0
Landscape-level determinants of the performance of an agglomeration bonus in conservation auctions 保护拍卖中集聚奖金绩效的景观决定因素
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-08 DOI: 10.1111/1477-9552.12576
Chi Nguyen, Uwe Latacz-Lohmann, Nick Hanley

The agglomeration bonus (AB) has been advocated as an incentive mechanism to boost spatially coordinated conservation efforts, where such coordination is thought to be beneficial to achieving biodiversity or other ecological outcomes. Specifically, an AB is paid to individual landholders if their conserved habitats are spatially connected to the conserved habitats of adjacent neighbours. This paper employs a series of controlled lab experiments with agriculture students to investigate the performance of AB in budget-constrained discriminatory-price auctions across different landscape types. We focus on the spatial correlation of opportunity costs and environmental benefits as one potentially important aspect of the landscape. We set up a stylised agricultural landscape where the conservation agency aims to connect fragmented wildlife habitats by incentivising farmers to enrol land in a conservation programme. We investigate the effects of an AB in landscapes where opportunity costs and environmental benefits are uncorrelated, negatively correlated or positively correlated over space. We found that the benefits of an AB in improving landscape-scale environmental outcomes were significant in the positive correlation landscape. However, the AB resulted in worse outcomes in the uncorrelated and negative landscapes.

集聚奖金(AB)被认为有利于实现生物多样性或其他生态成果,因此被提倡作为一种激励机制,以促进空间协调的保护工作。具体来说,如果个别土地所有者的受保护栖息地与相邻土地所有者的受保护栖息地在空间上相互连接,则可获得 AB。本文以农业专业学生为对象,通过一系列受控实验室实验来研究 AB 在不同景观类型的预算受限判别价格拍卖中的表现。我们将重点放在机会成本和环境效益的空间相关性上,将其作为景观的一个潜在重要方面。我们设定了一个典型的农业景观,在该景观中,保护机构旨在通过激励农民将土地加入保护计划,将支离破碎的野生动物栖息地连接起来。在机会成本和环境效益在空间上不相关、负相关或正相关的景观中,我们研究了 AB 的效果。我们发现,在正相关景观中,AB 在改善景观尺度环境结果方面的效益显著。然而,在不相关和负相关景观中,AB 导致了更差的结果。
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引用次数: 0
Comparing practice- and results-based agri-environmental schemes controlled by remote sensing: An application to olive groves in Spain 比较遥感控制的基于实践和基于结果的农业环境计划:在西班牙橄榄园中的应用
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-05 DOI: 10.1111/1477-9552.12573
Anastasio J. Villanueva, Rubén Granado-Díaz, Sergio Colombo

Farmers' preferences toward practice- and results-based agri-environmental schemes (AES) are analysed using a labelled choice experiment. The analysis focuses on schemes involving an innovative satellite-based monitoring system, with different environmental objectives. Olive groves in southern Spain are used as a case study. Results show no statistically significant differences in farmers' willingness to accept (WTA) payment for participating in practice- versus results-based AES when the scheme targets carbon sequestration. By contrast, farmers require a significantly higher WTA payment for results-based AES when targeting biodiversity (using bird species as an indicator), mostly due to the uncertainties related to its provision and monitoring. WTA significantly increases with provision level and remote sensing monitoring, regardless of the type of scheme. Significant preference heterogeneity is observed, partly explained by farmers' attitudes toward risk and their beliefs about environmental service provision and monitoring capacity. The results suggest useful policy implications, including the potential of making use of joint provision of environmental services in the design of results-based AES and accompanying them with uncertainty mitigating measures.

利用标记选择实验分析了农民对基于实践和结果的农业环境计划(AES)的偏好。分析的重点是涉及创新型卫星监测系统的计划,这些计划具有不同的环境目标。以西班牙南部的橄榄园为案例进行研究。结果表明,当计划以碳固存为目标时,农民在参与基于实践和基于结果的 AES 时,在接受付款的意愿(WTA)方面没有明显的统计学差异。相比之下,当以生物多样性(以鸟类物种为指标)为目标时,农民对基于结果的农业生态系统服务的支付意愿(WTA)要求要高得多,这主要是由于与提供和监测相关的不确定性。无论计划类型如何,WTA 都会随着提供水平和遥感监测的提高而大幅增加。观察到了明显的偏好异质性,部分原因在于农民对风险的态度以及他们对环境服务提供和监测能力的看法。研究结果表明了有益的政策影响,包括在设计基于结果的农业生态服务时利用联合提供环境服务的可能性,并同时采取不确定性缓解措施。
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引用次数: 0
Impacts of tariffs and NTMs on beef, pork and poultry trade 关税和非关税措施对牛肉、猪肉和家禽贸易的影响
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-02-23 DOI: 10.1111/1477-9552.12574
William C. Ridley, Jeff Luckstead, Stephen Devadoss

Though tariffs have declined in recent years, the number of applied non-tariff measures (NTMs) in meat trade has expanded. We estimate the impacts of tariffs and NTMs (sanitary and phytosanitary [SPS] measures, technical barriers to trade [TBTs], quantitative restrictions, and special safeguard measures) on beef, pork and poultry trade using a structural gravity model. Our baseline regression results show tariffs hinder trade, but SPS measures and TBTs on average expand trade for these three meat products. Using the estimates from our structural gravity model, we simulate the differential effects of declining tariffs versus proliferation of NTMs between 2003 and 2019. The simulation results show that tariff reductions during this period expanded global trade by a cumulative US$466.2 million for the three products, ceteris paribus. In contrast, growth in the number of NTMs caused global meat trade to rise by US$8.4 billion. Our findings thus suggest that the marked increase in the number of applied NTMs in recent decades has had a dramatically larger impact on global meat trade than tariff reductions.

虽然近年来关税有所下降,但肉类贸易中适用的非关税措施(NTMs)数量却在增加。我们利用结构重力模型估算了关税和非关税措施(卫生与植物检疫措施、技术性贸易壁垒、数量限制和特殊保障措施)对牛肉、猪肉和家禽贸易的影响。我们的基线回归结果表明,关税阻碍了贸易,但 SPS 措施和技术性贸易壁垒平均扩大了这三种肉类产品的贸易。利用结构引力模型的估计值,我们模拟了 2003 年至 2019 年关税下降与非关税措施扩散的不同影响。模拟结果表明,在这一时期,关税的降低使这三种产品的全球贸易累计增长了 4.662 亿美元。相比之下,非关税措施数量的增长导致全球肉类贸易额增加了 84 亿美元。因此,我们的研究结果表明,近几十年来适用的非关税措施数量显著增加,对全球肉类贸易的影响远远大于关税削减。
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引用次数: 0
VAT do you eat? Green consumption taxes and firms' market share 你吃增值税吗?绿色消费税与企业的市场份额
IF 3.4 2区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-02-20 DOI: 10.1111/1477-9552.12572
Kira Zerwer

This paper examines the role of a ‘green’ value-added tax in the competitive environment of firms. Using data on firms in Romania and leveraging the introduction of a tax reduction on organic products in 2019, I show that although the overall market for organic goods grows and potential to generate windfall profit exists, the market share of incumbent firms decreases because of intensified competition post-reform driven by new entrants competing for profits in the market. The market share decreases by about 2 percentage points after the reform. The effect depends on the relative elasticity of demand vis-à-vis supply in the market and the ability of a firm to protect its sales from new market entrants. Firms operating geographically further from the main consumer (i.e., more rural firms) and further upstream from the retail sector are more vulnerable to losing market share because urban demand is less elastic than rural demand and retail demand is less elastic than primary demand. Firms that are in markets where it is easier to switch from non-organic to organic and that are less capital intensive (i.e., have fewer fixed costs) are more vulnerable to losing market share to new market entrants.

本文探讨了 "绿色 "增值税在企业竞争环境中的作用。通过使用罗马尼亚企业的数据,并利用 2019 年对有机产品实行的减税政策,我发现尽管有机产品的整体市场在增长,并存在产生暴利的潜力,但由于改革后新进入者为争夺市场利润而导致竞争加剧,现有企业的市场份额有所下降。改革后,市场份额下降约 2 个百分点。这种影响取决于市场需求与供给的相对弹性,以及企业保护其销售不受新市场进入者影响的能力。由于城市需求的弹性低于农村需求,零售需求的弹性低于初级需求,因此,在地理位置上远离主要消费者(即更多的农村企业)和远离零售业上游的企业更容易失去市场份额。在市场上,从非有机产品转向有机产品比较容易,资本密集程度较低(即固定成本较少)的企业更容易被新进入市场的企业夺走市场份额。
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引用次数: 0
期刊
Journal of Agricultural Economics
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