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A DEA approach for merging dairy farms 合并奶牛场的DEA方法
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-06-25 DOI: 10.17221/418/2020-AGRICECON
S. Lozano, B. Adenso-Díaz
This paper proposes a model for determining the most advantageous merger within a set of dairy farms. It uses data envelopment analysis (DEA) to estimate the total technical efficiency improvement that the merger would produce and for decomposing it into a learning effect and a pure merger effect. A design of experiments has also been carried to test the effects of various factors (the total number of farms, the standard deviation of herd size, the percentage of farms exhibiting increasing returns to scale, the standard deviation of the current technical efficiency of the farms) on different response variables (the percentage of farms involved in the merger, the reduction of herd size and the efficiency improvement obtained by the merger). The results show that the disparity in the herd size of the farms in a region and the percentage of farms that exhibit increasing returns to scale increase the number of farms that enter into the most advantageous merger. The disparity of herd size also increases the number of cows that are not needed after the merger. Finally, the expected efficiency improvement increases with the total number of farms.
本文提出了一个确定一组奶牛场中最有利合并的模型。利用数据包络分析(DEA)估计并购将产生的总技术效率提升,并将其分解为学习效应和纯并购效应。我们还设计了实验来检验各种因素(农场总数、牧群规模的标准差、农场规模收益增加的比例、农场当前技术效率的标准差)对不同响应变量(参与合并的农场比例、牧群规模的减少和合并所获得的效率的提高)的影响。结果表明,区域内养殖场规模的差异和规模收益递增的养殖场比例增加了进入最有利合并的养殖场数量。牛群规模的差异也增加了合并后不需要的奶牛数量。最后,预期的效率提高随着农场总数的增加而增加。
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引用次数: 6
Export intensity and competitiveness of Indonesia's crude palm oil to main destination countries 印尼粗棕榈油对主要目的国的出口强度和竞争力
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-05-20 DOI: 10.17221/371/2020-AGRICECON
Fachry Husein Rosyadi, J. Mulyo, H. Perwitasari, D. Darwanto
Palm oil is a superior product from Indonesia that is continuously and widely used for daily needs such as cooking, grooming, and manufacturing. However, this potential must be supported by oil palm business actors' performance to maintain its intensity and competitiveness. This study investigates how various factors affect Indonesia's crude palm oil (CPO) export intensity and competitiveness by employing panel regression and the basic gravity model. The panel data used here is a 20-year time series with cross-sections from five major importers from 1999 to 2018. The results show that the importer's gross domestic product (GDP) and quantity of export significantly and positively affect Indonesia's CPO export intensity, while the exporter's GDP and economic distance has a significant and negative effect. The factors that positively and significantly influence competitiveness are soybean's import value and Roundtable on Sustainable Palm Oil (RSPO) certification, while Malaysian CPO's export and population of importing countries negatively affect Indonesian CPO competitiveness.
棕榈油是一种来自印度尼西亚的优质产品,不断被广泛用于烹饪、美容和制造业等日常需求。然而,这种潜力必须得到油棕商业参与者的表现的支持,以保持其强度和竞争力。本研究采用面板回归和基本重力模型,探讨了各种因素对印尼粗棕榈油出口强度和竞争力的影响。这里使用的面板数据是一个20年的时间序列,包括1999年至2018年五个主要进口商的横截面。结果表明,进口国的国内生产总值(GDP)和出口数量显著正向影响印尼的CPO出口强度,而出口国的GDP和经济距离具有显著负向影响。对竞争力产生正向显著影响的因素是大豆进口价值和可持续棕榈油圆桌会议(RSPO)认证,而马来西亚CPO出口和进口国人口对印尼CPO竞争力产生负向影响。
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引用次数: 6
Nonlinear analysis and prediction of soybean futures 大豆期货的非线性分析与预测
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-05-20 DOI: 10.17221/480/2020-AGRICECON
T. Yin, Yiming Wang
We use chaotic artificial neural network (CANN) technology to predict the price of the most widely traded agricultural futures – soybean futures. The nonlinear existence test results show that the time series of soybean futures have multifractal dynamics, long-range dependence, self similarity, and chaos characteristics. This also provides a basis for the construction of a CANN model. Compared with the artificial neural network (ANN) structure as our benchmark system, the predictability of CANN is much higher. The ANN is based on Gaussian kernel function and is only suitable for local approximation of nonstationary signals, so it cannot approach the global nonlinear chaotical hidden pattern. Improving the prediction accuracy of soybean futures prices is of great significance for investors, soybean producers, and decision makers.
本文采用混沌人工神经网络(CANN)技术对交易最广泛的农产品期货——大豆期货进行价格预测。非线性存在性检验结果表明,大豆期货的时间序列具有多重分形动力学、长期依赖性、自相似性和混沌特性。这也为CANN模型的构建提供了基础。与作为基准系统的人工神经网络(ANN)结构相比,CANN的可预测性要高得多。该方法基于高斯核函数,仅适用于非平稳信号的局部逼近,无法逼近全局的非线性混沌隐藏模式。提高大豆期货价格的预测精度对投资者、大豆生产者和决策者都具有重要意义。
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引用次数: 3
Asymmetric price transmission and farmers' response in the Czech dairy chain 捷克乳制品链中的不对称价格传导与农民反应
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-05-20 DOI: 10.17221/22/2021-AGRICECON
T. Rudinskaya, I. Bošková
The standard economic price theory of working with efficient source allocation is being confronted with a series of empirical findings of asymmetric price responses. The objective of the research was to examine whether the distribution of prices within the dairy chain in the Czech Republic was fair and whether farmers progressed in a collective approach to strengthen their position in the supply chain. We used the pre-cointegration and cointegration approach to test for asymmetry in the transmission of farm milk prices throughout the supply chain. Furthermore, we measured the development of market concentration by means of the Herfindahl-Hirschman index and discussed the background of the figures with producer organisation representatives. The results proved there were asymmetric price transmissions. In response, farmers consolidated and concentrated their milk sales. The concentration should not yet be understood as a goal but as a means to the next steps.
有效资源配置的标准经济价格理论正面临着一系列不对称价格反应的实证发现。该研究的目的是检查捷克共和国乳制品链内的价格分配是否公平,以及农民是否在集体方法中取得进展,以加强他们在供应链中的地位。我们使用前协整和协整方法来检验整个供应链中农场牛奶价格传递的不对称性。此外,我们通过赫芬达尔-赫希曼指数来衡量市场集中度的发展,并与生产者组织代表讨论了这些数字的背景。结果证明存在不对称的价格传导。作为回应,奶农整合并集中了他们的牛奶销售。集中不应被理解为一个目标,而应被理解为下一步的一种手段。
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引用次数: 2
Use of human resources information system in agricultural companies in the Czech Republic 捷克共和国农业公司人力资源信息系统的使用
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-05-20 DOI: 10.17221/452/2020-AGRICECON
P. Vrabcová, H. Urbancová
High-quality information systems explicitly focused on working with people help companies meet the increasingly complex requirements for registration of attendance, forms, employment contracts, and much more The article's main goal is to identify areas of human resources management for which agricultural companies in the Czech Republic use information systems to increase the efficiency of processes and evaluate the development of their usage with regard to the support of digitisation The data, which were subjected to factor analysis, were obtained via a questionnaire survey from selected 70 agricultural companies in the Czech Republic and via qualitative research (focus group, n = 7) The largest share of monitored agricultural holdings is using IT systems in the area of personal data, while the smallest share of monitored agricultural holdings is using software for monitoring education and knowledge transfer Factor analysis identified 4 factors that characterise agricultural companies according to the use of information and communication technologies (ICT) in human resource management The results show that in terms of the current shift of the entire agriculture towards digitisation, the use of ICT in staff management of companies cannot be neglected The outbreak of the COVID-19 pandemic exacerbates the use of ICT [ABSTRACT FROM AUTHOR] Copyright of Agricultural Economics / Zemedelska Ekonomika is the property of Czech Academy of Agricultural Sciences (CAAS) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission However, users may print, download, or email articles for individual use This abstract may be abridged No warranty is given about the accuracy of the copy Users should refer to the original published version of the material for the full abstract (Copyright applies to all Abstracts )
高质量的信息系统明确专注于与人合作,帮助公司满足越来越复杂的考勤、表格、雇佣合同等方面的要求。本文的主要目标是确定捷克共和国农业公司使用信息系统来提高流程效率的人力资源管理领域,并评估其在数字化数据支持方面的使用发展。通过对捷克共和国选定的70家农业公司的问卷调查和定性研究(焦点小组,n = 7)获得的因素分析。受监测的农业控股的最大份额是在个人数据领域使用IT系统。而被监测的农业控股中使用软件来监测教育和知识转移的比例最小。因子分析确定了农业公司在人力资源管理中使用信息和通信技术(ICT)的4个因素。结果表明,就目前整个农业向数字化的转变而言,2019冠状病毒肺炎(COVID-19)大流行疫情的爆发加剧了信息通信技术(ICT)的使用[摘要/作者]《农业经济》版权归捷克农业科学院(CAAS)所有,未经版权所有者明确书面许可,不得将其内容复制、通过电子邮件发送给多个网站或发布到listserv。本摘要可能被删节,不保证副本的准确性,用户应参考材料的原始出版版本(版权适用于所有摘要)
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引用次数: 5
Searching for more balanced distribution of direct payments among agricultural farms in the CAP post-2020 在2020年后的共同农业政策中寻求更平衡的农场间直接支付分配
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-05-20 DOI: 10.17221/417/2020-AGRICECON
R. Grochowska, A. Pawłowska, A. Skarżyńska
The study aimed to examine the changes in income inequalities in Polish farms and the impact of introducing the threshold of direct payments for farms (EUR 60 000) to form these inequalities. The research was based on data from the Farm Accountancy Data Network (FADN) for the years: 2006, 2013 and 2018. In each year, the sample included at least 10 000 observations that represented over 700 000 farms. The results were verified using statistical tests relating to the comparisons of averages and distributions of farm income for two samples and the Gini coefficient. The study noted deepening income inequalities in Polish farms, as evidenced by the increasing value of the Gini coefficient in the subsequent years and the growing share of payments in the formation of these inequalities. Neither for the sample analysed nor the field of observation of farms will introduce the threshold for direct payments per farm of at least EUR 60 000 (including labour costs) change the polarisation of income.
该研究旨在研究波兰农场收入不平等的变化,以及引入农场直接支付门槛(6万欧元)对形成这些不平等的影响。该研究基于农场会计数据网络(FADN) 2006年、2013年和2018年的数据。每年,样本包括至少1万个观测值,代表了70多万个农场。通过比较两个样本的农业收入的平均值和分布以及基尼系数,对结果进行了统计检验。该研究指出,波兰农场的收入不平等现象日益加深,基尼系数在随后几年中不断增加,支付在这些不平等现象中所占的份额越来越大,就是证明。无论是对样本分析还是对农场的观察领域,都不会引入每个农场直接支付至少6万欧元(包括劳动力成本)的门槛,从而改变收入的两极分化。
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引用次数: 3
Price volatility of milk and dairy products in Poland after accession to the EU 波兰加入欧盟后牛奶和奶制品价格的波动
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-03-19 DOI: 10.17221/459/2020-AGRICECON
P. Bórawski, Marta Guth, A. Parzonko, T. Rokicki, A. Perkowska, J. W. Dunn
Milk and dairy products help meet the nutritional needs of the population. The main goal of this research was to analyse price volatility of milk and dairy products in Poland after accession to the European Union (EU). Price is the main economic influencer. We used 161 monthly observations from 01. 2007 to 05. 2020 to analyse the price changes. To measure the volatility, we have used Augmented Dickey-Fuller test (ADF test), Autoregressive-Moving-Average model (ARMA model), and Granger test. Our research confirmed high volatility of milk and dairy products prices. The ARMA model confirmed that the dairy product prices are stationary. Milk, butter and Gouda cheese are also useful for forecasting.
牛奶和奶制品有助于满足人们的营养需求。本研究的主要目的是分析波兰加入欧盟(EU)后牛奶和乳制品的价格波动。价格是主要的经济影响因素。我们使用了2001年以来的161个月观察数据。2007年至2005年。2020年分析价格变化。为了测量波动率,我们使用了增强迪基-富勒检验(ADF检验)、自回归移动平均模型(ARMA模型)和格兰杰检验。我们的研究证实了牛奶和奶制品价格的高波动性。ARMA模型证实乳制品价格是平稳的。牛奶、黄油和豪达奶酪对预测也很有用。
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引用次数: 3
Determinants of farm profitability in the EU regions. Does farm size matter? 欧盟地区农业盈利能力的决定因素。农场规模重要吗?
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-03-19 DOI: 10.17221/415/2020-AGRICECON
Łukasz Kryszak, Marta Guth, B. Czyżewski
Farms in the European Union come in a wide variety of sizes and the effect of farm size on profitability (return on assets – ROA) has not been sufficiently investigated. The principal goal of this paper, therefore, is to study the determinants of farm profitability using the panels of the Farm Accountancy Data Network (FADN) on farms of different economic size between 2007 and 2018. We use a profitability function based on ratios that show the production and financial management strategies used by the farms. We also analyse the impact of subsidies under the Common Agricultural Policy (CAP). To deal with endogeneity, we run dynamic panel models using the system generalised method of moments (sys-GMM) estimators. We highlight the important role of the high level of equity turnover. An increase in production relative to the farm's equity plays a crucial role in the growth of profitability for all groups of farms, but it is especially important for smaller entities. In addition, farm managers should control the level of debt since the debt-to-asset ratio is a highly significant negative determinant of farm profitability in most of the groups. The increase in subsidy rate generally translates into higher ROA, but this variable has a negative impact across the largest holdings.
欧盟的农场规模各不相同,农场规模对盈利能力(资产回报率- ROA)的影响尚未得到充分调查。因此,本文的主要目标是利用农场会计数据网络(FADN)对2007年至2018年间不同经济规模农场的面板研究农场盈利能力的决定因素。我们使用基于比率的盈利能力函数,该比率显示了农场使用的生产和财务管理策略。我们还分析了共同农业政策(CAP)下补贴的影响。为了处理内生性,我们使用系统广义矩量法(sys-GMM)估计器运行动态面板模型。我们强调高水平的股权周转率的重要作用。相对于农场权益的产量增加对所有农场集团的盈利能力增长起着至关重要的作用,但对较小的实体尤其重要。此外,农场管理者应该控制债务水平,因为在大多数群体中,债务与资产比率是农场盈利能力的一个非常显著的负决定因素。补贴率的增加通常转化为更高的ROA,但这个变量对最大的持股量有负面影响。
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引用次数: 11
The impact of agricultural input costs on food prices in Turkey: A case study 农业投入成本对土耳其食品价格的影响:一个案例研究
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-03-19 DOI: 10.17221/260/2020-AGRICECON
Sefa Işık, Fatih Cemil Özbuğday
Food price inflation has been a significant subject of debate in Turkey since food prices soared in 2018. The study examines the linkage between agricultural input prices and food prices in Turkey by using quantitative method approaches with the monthly data spanning from 2015-M01 to 2020-M01. A co-integration analysis is performed using the autoregressive-distributed lag (ARDL) bounds test approach and Maki co-integration test with structural breaks. Additionally, the fully modified ordinary least square (FMOLS), dynamic ordinary least squares (DOLS), and canonical co-integrating regression (CCR) are applied to verify the results of the ARDL approach. The analysis demonstrates a significant, long-running relationship between agricultural input prices and food prices in Turkey. The long-run agricultural input price elasticities are found to be in the range of 1.30–1.36.
自2018年食品价格飙升以来,食品价格通胀一直是土耳其争论的一个重要话题。本研究利用2015- 01年至2020- 01年的月度数据,采用定量方法考察了土耳其农业投入价格与食品价格之间的联系。协整分析采用自回归分布滞后(ARDL)界检验方法和结构断裂的Maki协整检验进行。此外,采用全修正普通最小二乘(FMOLS)、动态普通最小二乘(DOLS)和典型协整回归(CCR)对ARDL方法的结果进行了验证。分析表明,土耳其农业投入价格与食品价格之间存在显著的长期关系。长期农业投入价格弹性在1.30 ~ 1.36之间。
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引用次数: 6
Implementing selected strategic documents focused on increasing efficiency and competitiveness of agricultural enterprises in the Czech Republic 执行选定的战略文件,重点是提高捷克共和国农业企业的效率和竞争力
IF 2.2 4区 经济学 Q1 Economics, Econometrics and Finance Pub Date : 2021-03-04 DOI: 10.17221/381/2020-AGRICECON
H. Urbancová, P. Vrabcová
Strategic documents are considered the basic tools for managing and coordinating any company's development, setting the basic development directions and goals that the company wants to achieve and the ways to achieve them. It is always necessary to reconcile the diverse interests of interest groups in relation to the development of a given enterprise to make efficient use of resources and opportunities, as far as possible without conflicts. The classification, meaning, and contents of companies' strategic documents are most often based on their established practice. The article's main goal is to identify the level of implementation of a group of implemented strategic documents aimed at increasing the efficiency and competitiveness of agricultural enterprises in the Czech Republic. The data, which were subjected to factor analysis, were obtained via a questionnaire survey from 70 agricultural enterprises in the Czech Republic. The results part contains also results from qualitative research (focus group, n = 7). The results showed that agricultural enterprises implement groups of so-called conservative strategies and competence development strategies. Most of the surveyed agricultural enterprises have a formulated innovation strategy, while 56% of enterprises do not have an implemented environmental strategy.
战略文件被认为是管理和协调任何公司发展的基本工具,它规定了公司想要实现的基本发展方向和目标以及实现这些目标的途径。在企业发展的过程中,始终需要协调各利益集团的不同利益,使资源和机会得到有效利用,尽量不发生冲突。公司战略文件的分类、含义和内容通常是基于他们的既定实践。本文的主要目标是确定一组实施战略文件的实施水平,旨在提高捷克共和国农业企业的效率和竞争力。数据通过对捷克共和国70家农业企业的问卷调查获得,并进行因子分析。结果部分也包含定性研究的结果(焦点小组,n = 7)。结果表明,农业企业实施了所谓的保守战略和能力发展战略。大多数被调查的农业企业都制定了创新战略,而56%的企业没有实施环境战略。
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引用次数: 5
期刊
Agricultural Economics-Zemedelska Ekonomika
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