Agricultural Economics (Zemědělská ekonomika)最新文献

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Towards diverging land prices in agricultural districts? Evidence from Italy before and after the great crisis 农区土地价格分化?大危机前后意大利的证据

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-03-30 DOI: 10.17221/395/2022-agricecon

Emma C. Bruno, Rosalia Castellano, G. Punzo, L. Salvati

引用次数: 0

Assessment of the impact of agricultural support on crop diversity 农业支持对作物多样性影响的评估

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-03-30 DOI: 10.17221/387/2022-agricecon

Zdeňka Žáková Kroupová, L. Čechura, Matej Opatrny, Zuzana Hloušková, Iveta Mlezivová

引用次数: 0

Agricultural commodity markets and the Turn of the month effect 农产品市场与月初效应

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-03-24 DOI: 10.17221/17/2023-agricecon

Peter Árendáš (ORCID: https://orcid.org/0000-0003-1413-2, Jana Kotlebová (ORCID: https://orcid.org/0000-0002-2716

The Turn of the month (ToM) effect is a calendar anomaly when the majority of returns of an asset are con-centrated into several days around the end of the old month and the start of the new one. Until now, the investigation of the ToM effect has mainly been focused on the stock markets. However, this paper investigates the presence of the ToM effect in eight key agricultural commodity markets (cocoa, coffee, corn, cotton, rice, soybean, sugar, wheat), using three different alternatives of the ToM window, during the 2001–2021 time period. The results show a statistically significant ToM effect in the rice, coffee, and sugar markets. Further results show that the ToM pattern changed during the COVID-19 pandemic, and that, in the case of commodities with a statistically significant ToM effect, the ToM effect can be efficiently used to beat the buy & hold investment strategy convincingly. © The authors.

月之交效应是一种日历异常现象，当一项资产的大部分收益集中在旧月底和新月初的几天左右时。到目前为止，对ToM效应的研究主要集中在股票市场。然而，本文在2001年至2021年期间，使用三种不同的ToM窗口，调查了八个主要农产品市场(可可、咖啡、玉米、棉花、大米、大豆、糖、小麦)中ToM效应的存在。结果显示，在大米、咖啡和糖市场上，ToM效应具有统计学意义。进一步的结果表明，在COVID-19大流行期间，ToM模式发生了变化，并且在具有统计显著ToM效应的商品的情况下，可以有效地利用ToM效应令人信服地击败买入并持有的投资策略。©作者。

引用次数: 0

How to reduce the extreme risk of losses in corn and soybean markets? Construction of a portfolio with European stock indices 如何降低玉米和大豆市场损失的极端风险?欧洲股票指数组合的构建

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-03-10 DOI: 10.17221/371/2022-agricecon

D. Živkov, Biljana Stankov, N. Papić-Blagojević, J. Damnjanovic, Ž. Račić

Because of the COVID-19 pandemic and the war in Ukraine, agricultural commodities had significant price increases, which inevitably implies high risk. In this article, we try to mitigate the extreme risk of corn and soybeans by constructing multivariate portfolios with developed and emerging European stock indices. We measured extreme risk via conditional value at risk. To address different goals that investors might prefer, we produced portfolios with the lowest risk and highest return-to-risk ratio. According to the results, corn and soybeans had relatively high portfolio shares. However, they are the riskiest assets because they have a very low pairwise correlation with the stock indices. Portfolios with emerging European indices had better risk-reducing results, considering both agricultural commodities because these indices are less risky than developed indices. In particular, the risk reductions of corn were 38% and 50% in the portfolios with developed and emerging stock indices, respectively, whereas, for soybeans, the results were 28% and 41%, respectively. In optimal portfolios, emerging European stock indices had the upper hand in most cases. © The authors.

受新冠肺炎疫情和乌克兰战争影响，农产品价格大幅上涨，不可避免地意味着高风险。在本文中，我们试图通过构建欧洲发达和新兴股票指数的多元投资组合来减轻玉米和大豆的极端风险。我们通过风险条件值来衡量极端风险。为了解决投资者可能喜欢的不同目标，我们制作了具有最低风险和最高风险回报比的投资组合。结果显示，玉米和大豆在投资组合中的份额相对较高。然而，它们是风险最大的资产，因为它们与股票指数的成对相关性非常低。考虑到这两种农产品，欧洲新兴市场指数的投资组合在降低风险方面效果更好，因为这些指数的风险低于发达国家指数。特别是，在发达股指和新兴股指组合中，玉米风险分别降低38%和50%，而大豆风险分别降低28%和41%。在最优投资组合中，新兴欧洲股指在多数情况下占据上风。©作者。

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引用次数: 0

Decomposition of variations of direct payments rates on the example of selected support instruments applied in Poland 以波兰采用的选定支助工具为例，分解直接付款率的变化

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-02-21 DOI: 10.17221/285/2022-agricecon

A. Sadłowski

引用次数: 0

Recent development of economic indicators on Czech dairy farms 捷克奶牛场经济指标的最新发展

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-02-21 DOI: 10.17221/381/2022-agricecon

J. Syrůček, L. Bartoň, D. Řehák, M. Štolcová, J. Burdych

引用次数: 3

Working capital management in the food and beverage industry: Evidence from listed European companies 食品饮料行业的营运资本管理:来自欧洲上市公司的证据

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-02-21 DOI: 10.17221/383/2022-agricecon

H. Özkaya, Şebnem Yaşar

引用次数: 2

A methodological proposal for the sociocultural valuation of ecosystem services 生态系统服务的社会文化价值评估方法建议

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-02-13 DOI: 10.17221/298/2022-agricecon

Óscar González-Yebra, José Ángel Aznar-Sánchez, J. F. Velasco-Muñoz, B. López-Felices

引用次数: 0

The economic well-being of smallholders and challenges during COVID-19 pandemic: A review 2019冠状病毒病大流行期间小农的经济福祉和挑战:综述

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-01-27 DOI: 10.17221/344/2022-agricecon

Nurul Atiqah Binti Mohd Suib, N. Salleh, Mohd Fazim Ahmad

The challenges smallholders face in agricultural management between developed and developing countries differ and can also impact the smallholder's well-being. The purpose of this study is to identify factors that affect the well-being of smallholders. We conducted a systematic literature by applying the Preferred Reported Item for Systematic Review and Meta-Analysis (PRISMA) and extracted 30 articles from Scopus and Web of Science. These articles show three main factors that drive well-being: technology, optimal resource, and insurance, and two additional factors: market pricing and tax policy. Findings show that all the above factors will first impact economic well-being and, sub-sequently, social well-being. When COVID-19 struck, the smallholder's well-being was also affected in addition to the destabilised food chain. Travel restrictions have led to a labour shortage. The smallholders had to turn to e-commerce to sell their products. They also incurred losses and experienced difficulties in procuring agricultural intermediate inputs. The absence of agricultural insurance worsened the impact on the well-being of the smallholders. To safeguard the well-being of these smallholders, the study suggests that stakeholders should encourage local labour participation, increase investment in human capital, adopt e-commerce in marketing, offer agricultural insurance schemes against various disasters and continuously provide or increase subsidies to smallholders. © The authors.

发达国家和发展中国家的小农在农业管理方面面临不同的挑战，这些挑战也可能影响小农的福祉。本研究的目的是找出影响小农福祉的因素。我们采用系统评价和荟萃分析首选报告条目(PRISMA)进行了系统文献检索，并从Scopus和Web of Science中提取了30篇文章。这些文章显示了推动幸福的三个主要因素:技术、最优资源和保险，以及另外两个因素:市场定价和税收政策。研究结果表明，上述所有因素将首先影响经济福祉，然后影响社会福祉。当COVID-19爆发时，除了食物链不稳定外，小农的福祉也受到影响。旅行限制导致了劳动力短缺。小农们不得不转向电子商务销售他们的产品。他们也遭受损失，在采购农业中间投入方面遇到困难。农业保险的缺失加剧了对小农福利的影响。为了保障这些小农的福祉，研究建议利益相关者应鼓励当地劳动力参与，增加人力资本投资，在营销中采用电子商务，提供针对各种灾害的农业保险计划，并不断向小农提供或增加补贴。©作者。

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引用次数: 3

Simulation of the impacts of the proposed direct payment scheme - The case of the Czech Republic 直接支付方案的影响模拟——以捷克共和国为例

Agricultural Economics (Zemědělská ekonomika)

Pub Date : 2023-01-27 DOI: 10.17221/328/2022-agricecon

J. Lososová, R. Zdeněk

引用次数: 1

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