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Implementing an Approximation of Cumulative Prospect Theory into Mixed Linear Programming – an Application to Bio-Economic Modelling at Farm-Scale Considering Crop Insurance 在混合线性规划中实现累积前景理论的近似——在考虑作物保险的农场规模生物经济模型中的应用
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-08-26 DOI: 10.30430/gjae.2022.0244
W. Britz
Many empirical studies have found Cumulative Prospect Theory (CPT) superior in depicting risk behavior compared to the expected utility approach and literature now offers also CPT related parameter estimates for European farmers. CPT combines two segments of utility functions, a convex, risk loving one for losses and a concave, risk averse one for gains, and assigns subjective weights to the pay-offs according to their cumulative probabilities. So far, no implementation of CPT into constrained optimization problems exists, allowing for instance, the simulation of risk management under CPT in farm-scale programming models. To close this gap, we propose to combine endogenous sorting of the pay-offs based on integer variables with a piece-wise linear approximation of the value function using SOS2 (Special Ordered Sets of Type 2) variables. The SOS2 variables are required to deal with the convexity of the loss segment of the utility function. The integer sorting assigns the weights to the pay-offs according to their cumulative probabilities, it requires that all pay-offs are equally likely. Simulating optimal uptake levels of variants of a hypothetical crop insurance product with an evolved bio-economic model at farm-scale serves a proof of concept. The model considers adjustments in the cropping plan and allows for partial insurance coverage, in opposite to existing studies which evaluate the uptake of crop insurance at fixed crop choices and depict coverage as a yes-no decision. The approximation error of the approach is found as negligible small and the numerical burden compared to optimization under risk neutrality as still acceptable. The proposed approximation approach is quite general and applicable for any utility function increasing in the pay-off value and does not require its differentiability. It can also be applied without probability weighting. The empirical application underlines that the approach generates the expected behavior when a risk reducing strategy, here crop insurance, is considered under CPT. Insured acreage generally increases with higher strike levels where more frequently occurring but lower crop damages are covered, and with reduced cost of the insurance products. Using crop insurance as a risk management strategy is found to interact with other measures such as adjustments in cropping shares. This underlines the usefulness of an approach which allows to optimize interacting risk management strategies at farm-scale under CPT, considering resource and other relevant constraints.
许多实证研究发现,累积前景理论(CPT)在描述风险行为方面优于预期效用方法,现在文献也为欧洲农民提供了与CPT相关的参数估计。CPT结合了效用函数的两个部分,一个是凸的,喜欢风险的损失部分,一个是凹的,厌恶风险的收益部分,并根据它们的累积概率为收益分配主观权重。到目前为止,还没有将CPT实现到约束优化问题中,例如,允许在农场规模规划模型中模拟CPT下的风险管理。为了缩小这一差距,我们建议将基于整数变量的收益内生排序与使用SOS2(类型2的特殊有序集)变量的值函数的分段线性逼近相结合。需要SOS2变量来处理效用函数的损失段的凸性。整数排序根据它们的累积概率分配权重,它要求所有的支付都是等可能的。在农场规模上,用进化的生物经济模型模拟假设作物保险产品变体的最佳吸收水平,可以证明这一概念。该模型考虑了种植计划的调整,并允许部分保险覆盖,这与现有的研究相反,这些研究评估了作物保险在固定作物选择上的吸收情况,并将覆盖范围描述为是或否的决定。发现该方法的逼近误差小得可以忽略不计,与风险中立优化相比,其数值负担仍然可以接受。所提出的近似方法是相当普遍的,适用于任何效用函数的收益值增加,并且不要求其可微性。它也可以在没有概率加权的情况下应用。实证应用强调,当在CPT下考虑降低风险的策略(这里是作物保险)时,该方法会产生预期的行为。受保险面积通常随着罢工水平的提高而增加,罢工发生的频率越高,但承保的作物损失越少,保险产品的成本也越低。将作物保险作为一种风险管理策略与其他措施(如调整种植份额)相互作用。这强调了一种方法的有用性,该方法允许在CPT下优化农场规模的相互作用风险管理战略,同时考虑到资源和其他相关限制。
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引用次数: 0
The Russia-Ukraine Conflict – Implications for Farms and Agricultural Markets: Introduction to the Special Issue 俄罗斯-乌克兰冲突-对农场和农业市场的影响:特刊导言
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-08-22 DOI: 10.30430/gjae.2022.3.intro
M. Odening, S. Hüttel
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引用次数: 0
Impact of the War in Ukraine on Farm Profitability and the Attractiveness of Environmental Measures in Germany 乌克兰战争对德国农场盈利能力的影响以及环境措施的吸引力
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-08-22 DOI: 10.30430/gjae.2022.0300
R. Ellßel, Friedrich Wüstemann, F. Offermann, Thomas de Witte
The war in Ukraine has led to massive price increases for agricultural inputs and products. This paper examines the effects on farm profitability and the consequences for the adoption of eco-schemes on arable farms. We use the large farm sample of the German Farm Accounting Data Network (FADN) to identify the average income effects and to highlight the heterogeneity of the effects and their drivers. Building on these results, we analyse farms’ adaptation strategies with a focus on changes in nitrogen input intensity and participation in environmental measures (“eco-schemes”) of the new Common Agriculture Policy (CAP). Our results suggest that income effects are heterogeneous and subject to considerable uncertainty about the near future, and that many farms are likely to benefit from the short-term price effects of the war in Ukraine. Against this background, the efficiency of financial assistance under the EU crisis reserve would have benefited from a stronger focus on liquidity loans and ex-post hardship support. Our analysis also shows strong implications for participation in eco-schemes. The results cast significant doubts on the effectiveness and efficiency of the eco-schemes introduced by the new CAP, beyond the observed impact of the war in Ukraine.
乌克兰战争导致农业投入和产品价格大幅上涨。本文考察了对农业盈利能力的影响以及在耕地上采用生态方案的后果。我们使用德国农场会计数据网络(FADN)的大型农场样本来识别平均收入效应,并强调效应及其驱动因素的异质性。在这些结果的基础上,我们分析了农场的适应策略,重点关注氮投入强度的变化和参与新的共同农业政策(CAP)的环境措施(“生态计划”)。我们的研究结果表明,收入影响是异质性的,并且在不久的将来会受到相当大的不确定性的影响,许多农场可能会从乌克兰战争的短期价格影响中受益。在这种背景下,欧盟危机准备金下金融援助的效率将受益于更注重流动性贷款和事后困难支持。我们的分析还显示了参与生态计划的强烈影响。结果对新CAP引入的生态计划的有效性和效率提出了重大质疑,除了观察到的乌克兰战争的影响。
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引用次数: 0
Why did Ukraine become a Key Player on the World Agri-Food Markets? An Enterprise-Level Perspective 乌克兰为何成为世界农产品市场的重要参与者?企业级透视图
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-08-22 DOI: 10.30430/gjae.2022.0302
T. Gagalyuk, I. Ostapchuk, V. Lapa, A. Balmann
Over the past decades, Ukraine has built an increasingly dynamic agricultural sector, characterized by growing export engagement in various commodities. Whether the country can quickly regain its status of a key player on the world agri-food markets amid and after Russian invasion is extremely important for international food security. However, the to-date understanding of the recovery potential remains elusive due to the lack of systematic and objective insights into the major drivers of recent growth. Scarce evidence suggests that Ukraine’s agriculture has been successfully modernized mainly due to the efforts of private sector actors operating in the context of generally inconsequent policies typical of a transition country. The following factors have been reported to contribute to recent modernization and development of the sector: a) improvement of efficiency and productivity, especially in crop production; b) structural change involving a rapid development of large-scale agroholdings; and c) relatively positive public acceptance of modern technologies and organizational forms of agricultural production. The present paper reviews these trends in greater detail by addressing the role of professional farm management, digital technologies, ongoing optimization of the size of production operations (including horizontal and vertical integration through merger and acquisitions) as well as farm engagement in sustainability and legitimation activities as the main enterprise-level drivers of growth and resilience in Ukrainian agriculture.
在过去的几十年里,乌克兰建立了一个日益活跃的农业部门,其特点是各种商品的出口不断增加。在俄罗斯入侵期间和之后,该国能否迅速恢复其在世界农业食品市场上的重要地位,对国际粮食安全至关重要。然而,由于对近期增长的主要驱动因素缺乏系统和客观的见解,迄今为止对恢复潜力的理解仍然难以捉摸。很少有证据表明,乌克兰的农业已经成功地实现了现代化,这主要是由于私营部门行动者在转型国家典型的普遍不合理的政策背景下所做的努力。据报道,下列因素有助于该部门最近的现代化和发展:a)提高效率和生产力,特别是在作物生产方面;B)涉及大规模农业控股迅速发展的结构性变化;c)公众对现代技术和农业生产组织形式的接受程度相对积极。本文通过解决专业农场管理、数字技术、生产经营规模的持续优化(包括通过并购进行的横向和纵向整合)以及农场参与可持续性和合法化活动作为乌克兰农业增长和弹性的主要企业级驱动因素的作用,更详细地回顾了这些趋势。
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引用次数: 1
Considering Environmental Factors in Technical Efficiency Analysis of European Crop Production 考虑环境因素的欧洲作物生产技术效率分析
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-07-08 DOI: 10.30430/gjae.2022.0222
Alexander Kaiser, A. Schaffer
Data Envelopment Analysis (DEA) is a popular tool to determine technical efficiency of agricultural production. One issue that arises in some nonparametric frameworks is the heterogenous endowment with determinate factors, such as agroclimatic conditions. Environmental factors clearly lie outside of the sphere of influence of the decision-maker and pose natural limits to increasing efficiency and productivity of agricultural production. Calls for rationalization or better allocation of production inputs might thus not be adequate if concerned studies do not properly account for exogeneous factors of efficiency. The presented paper addresses the existing attempts to deal with the issue and analyzes the effect of soil quality on technical efficiency, calculated for crop producers of 122 European regions (FADN), using a regularly employed two-stage DEA framework. The effect of soil quality is then accounted for by adjusting the input factor land by a land quality factor. First, results show that environmental factors, e.g., soil quality, have a significant positive effect on technical efficiency. Further, the proposed land adjustment reveals structurally different results for some individual efficiency estimates, which indicates that neglecting the effect of environmental factors on efficiency might yield misleading policy implications.
数据包络分析(DEA)是确定农业生产技术效率的常用工具。在一些非参数框架中出现的一个问题是具有决定性因素(如农业气候条件)的异质性禀赋。环境因素显然不在决策者的影响范围之内,对提高农业生产的效率和生产力构成自然限制。因此,如果有关研究没有适当地考虑到效率的外来因素,要求合理化或更好地分配生产投入的呼吁可能是不够的。本文提出了解决这一问题的现有尝试,并分析了土壤质量对技术效率的影响,使用常规采用的两阶段DEA框架,对122个欧洲地区(FADN)的作物生产者进行了计算。然后通过调整土地质量因子的输入因子土地来解释土壤质量的影响。结果表明:土壤质量等环境因子对技术效率有显著的正向影响;此外,拟议的土地调整揭示了某些个别效率估计的结构差异结果,这表明忽视环境因素对效率的影响可能会产生误导性的政策含义。
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引用次数: 0
How much Meat do we eat? Estimating per Capita Meat Consumption in Germany based on a Market Balance Approach 我们吃多少肉?基于市场平衡方法估计德国人均肉类消费量
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-05-23 DOI: 10.30430/gjae.2022.0182
Annika J. Thies, J. Efken, M. Sönnichsen
Meat consumption has become increasingly relevant within the greater scientific, political, and public debate due to the variety of negative effects that it has on the environment, human health, and animal welfare. In Germany, the statistical basis for “direct consumption” entails uncertainties and is based on parameters dating back to 1987. The following study deals with an updated and revised estimate of the per capita consumption of pork, beef, and poultry in Germany, focusing on the supply-side. Unlike the original approach, the estimate is based on a mass flow analysis. It includes a survey at the slaughterhouse level, adjustments to external trade statistics, and assumptions on loss and waste at five different value chain stages. An average total per capita meat consumption of 65 kg is calculated for the year 2018. Thus, meat consumption has been underestimated by 4 kg per capita based on official statistics by overestimating waste, losses, and non-food uses. Our results provide information regarding per capita and total meat consumption, enable future projections, and give an overview of the use of meat outside the food chain. The approach used is discussed against the background of international comparability and applicability. In this way the study provides important indications for political decision-makers and contributes to more objectivity in the public debate on meat consumption.
由于肉类消费对环境、人类健康和动物福利的各种负面影响,它在更大的科学、政治和公共辩论中变得越来越重要。在德国,“直接消费”的统计基础具有不确定性,其依据的参数可追溯到1987年。下面的研究涉及对德国猪肉、牛肉和家禽人均消费量的最新和修订估计,重点关注供应方面。与最初的方法不同,估计是基于质量流分析。它包括屠宰场层面的调查、对外贸易统计数据的调整,以及对价值链五个不同阶段的损失和浪费的假设。2018年的人均肉类消费量为65公斤。因此,根据官方统计,由于高估了浪费、损失和非食品用途,人均肉类消费量被低估了4公斤。我们的研究结果提供了有关人均和总肉类消费量的信息,使未来预测成为可能,并概述了食物链外肉类的使用情况。在国际可比性和适用性的背景下讨论了所采用的方法。通过这种方式,该研究为政治决策者提供了重要的指示,并有助于在有关肉类消费的公共辩论中更加客观。
{"title":"How much Meat do we eat? Estimating per Capita Meat Consumption in Germany based on a Market Balance Approach","authors":"Annika J. Thies, J. Efken, M. Sönnichsen","doi":"10.30430/gjae.2022.0182","DOIUrl":"https://doi.org/10.30430/gjae.2022.0182","url":null,"abstract":"Meat consumption has become increasingly relevant within the greater scientific, political, and public debate due to the variety of negative effects that it has on the environment, human health, and animal welfare. In Germany, the statistical basis for “direct consumption” entails uncertainties and is based on parameters dating back to 1987. The following study deals with an updated and revised estimate of the per capita consumption of pork, beef, and poultry in Germany, focusing on the supply-side. Unlike the original approach, the estimate is based on a mass flow analysis. It includes a survey at the slaughterhouse level, adjustments to external trade statistics, and assumptions on loss and waste at five different value chain stages. An average total per capita meat consumption of 65 kg is calculated for the year 2018. Thus, meat consumption has been underestimated by 4 kg per capita based on official statistics by overestimating waste, losses, and non-food uses. Our results provide information regarding per capita and total meat consumption, enable future projections, and give an overview of the use of meat outside the food chain. The approach used is discussed against the background of international comparability and applicability. In this way the study provides important indications for political decision-makers and contributes to more objectivity in the public debate on meat consumption.","PeriodicalId":48919,"journal":{"name":"German Journal of Agricultural Economics","volume":"5 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77449874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Unfair Trading Practices: Evidence in the Fruit Supply Chain 不公平贸易行为:水果供应链中的证据
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-04-21 DOI: 10.30430/gjae.2022.0172
Katarína Baráthová, J. Pokrivčák, M. Rajcaniova
This paper evaluates the occurrence and determinants of unfair trading practices (UTPs) in the fruit supply chain in Slovakia. Based on a representative survey of fruit growers, mainly apple growers, the study concludes that 79% of the producers experienced at least 1 UTP in a relationship with their main buyer. The most frequent UTPs are late payments (39.6%), payments unrelated to a specific transaction (39.6%), and unilateral changes by buyers in contracts and orders. The results of the probit model show that producer organisations decrease the probability of UTPs relative to conditions in which the main buyer is a private trader (by 32%) or supermarket (by 35%). This result provides some justification for the support of producer organisations under the Common Agricultural Policy of the European Union.
本文评估了斯洛伐克水果供应链中不公平贸易行为(UTPs)的发生和决定因素。根据对水果种植者(主要是苹果种植者)的代表性调查,该研究得出结论,79%的生产者在与主要买家的关系中至少经历过一次UTP。最常见的utp是延迟付款(39.6%),与特定交易无关的付款(39.6%),以及买方在合同和订单中的单方面变更。probit模型的结果表明,相对于主要买家是私人贸易商(32%)或超市(35%)的情况,生产者组织降低了utp的概率。这一结果为生产者组织在欧盟共同农业政策下的支持提供了一些理由。
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引用次数: 0
Der Markt für Bioenergie 2021/2022 21/ 21世纪生物能源市场
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-04-19 DOI: 10.30430/71.2022.5.bioenergie
Sören Mohrmann, S. Schukat, C. Schaper
Der diesjährige Marktbericht Bioenergie gibt einen Überblick über aktuelle klima- und energiepolitische Themen mit einem Schwerpunkt auf Deutschland. Nach einem starken Rückgang des Weltwirtschaftswachstums und damit des weltweiten Energieverbrauchs im Jahr 2020 in Folge der COVID-19-Pandemie, war das Jahr 2021 durch eine leichte Konjunkturerholung gekennzeichnet, die sich wiederum auf die internationalen Energiemärkte ausgewirkt hat. Vor diesem Hintergrund werden zu Beginn des Berichtes energiepolitisch relevante Ereignisse im Jahr 2021 zusammengefasst, ehe die erneuerbaren Energien in den deutschen und internationalen Energiemix eingeordnet werden. Daran anschließend wird auf die land- und forstwirtschaftliche Produktion von Biomasse für die energetische Verwertung sowie die energetische Nutzung von biogenen Rest- und Abfallstoffen eingegangen. Des Weiteren werden aktuelle Entwicklungen an den Biokraftstoffmärkten sowie die Entwicklung der Strom- und Wärmeerzeugung aus biogenen Festbrennstoffen und der Biogaserzeugung in Deutschland thematisiert. Zum Abschluss des Berichts werden Agri-Photovoltaik-Anlagen als Chance für die Landwirtschaft und die Energiewende in Deutschland diskutiert. This year's Bioenergy Market Report provides an overview of current climate and energy policy issues with a focus on Germany. After a sharp decline in the global economy and energy consumption in 2020 due to the COVID-19 pandemic, 2021 is characterized by a slight economic recovery, which has had a corresponding impact on the international energy markets. After outlining the events from 2021 that are relevant to energy policy, renewable energies are contextualized within the German and international energy mix. Along with a description of biomass production in agriculture and forestry, usage of biogenic residual and waste materials is also described. The section on the energetic use of biomass deals with current developments in German biogas production and biofuels markets, as well as electricity and heat generation from biogenic solid fuels. The report concludes with a chapter on agrophotovoltaics as an opportunity for agriculture and the energy transition in Germany.
今年的生物能源市场报告概括了当前的气候和能源问题,主要是关注德国。随着二氧化碳19国流行于2020年世界经济增长和全球能源消耗大幅放缓,2021年的经济复苏势头又在影响国际能源市场。这一背景下,该报告将于2021年在可再生能源被纳入德国和国际能源组合之前结合起来。与会者接着谈到用于能源应用的农业、森林和森林生产以及生物废物的能源利用。此外,德国生物燃料市场的最新发展以及生物燃料和生物天然气生产带来的电力和热源生产的发展也在德国宣布。报告的最后讨论内容为:农业与能源转型德国的机会。这一年的生物能源市场报告是关于德国重点的一个问题的过渡问题的。《全球经济和能源展望展望》的现状在2020年失去了平衡,2021年经济复苏,2021年失去了国际能源市场的作用。将2021年的行动设定为能源政策,可再生能源组成了德国和国际能源组合。农业和林业里的生物混合产品,使用生物工程师残余和有毒材料的现象却让人失望。再生能源公司《同意章上的农耕但农业转变的机会》
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引用次数: 0
Der Markt für Fleisch und Fleischprodukte 2021/2022 2021/ 21肉类市场
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-04-14 DOI: 10.30430/71.2022.5.fleisch
J. Efken, Jakob Meemken, I. Christoph-Schulz
The year 2021 shows a division between the development of the different global meat markets. Fueled by the Chinese market there was a strong demand for beef in particular coupled with a limited supply which results in strongly increased prices for beef and beef products. The same occurred on the meat markets of mutton and goat. On the contrary, there was a steady demand for pork but also a big increase in pork production, again driven by the expansion in China. As Chinese importers began to shorten their orders, prices of pork went down in the second half of 2021. Regarding the poultry markets there is a more balanced development of supply and demand. The EU-27 pork and poultry meat production increased a bit in 2021 compared to 2020 while beef production shrunk slightly. There are strong differences between the member states. In particular Spain, Poland, Ireland and the Netherlands realized a remarkable expansion of meat production. In sum, EU consumption is stagnating. The German pork market faces extraordinary challenges. Weak demand for pork in the last few years is coupled with continuous discussion about pig farming and working conditions in slaughterhouses and the meat industry. The Corona pandemic and adding to that the outbreak of African Swine Fever in September 2020 led to serious marketing problems and a downward trend for pig and pork prices. Contrary to that, cattle and beef markets achieve – as on the international markets - huge price increases. The domestic production did not respond with production expansion for now because the milk market causes the rather continuous decline of beef production and changes in production have a long time-delay. The German poultry market is expansive both in production and consumption. The actual situation and short-term development of the market of meat alternatives shows a still relatively young and less established market with marginal market shares in the different product markets. Die Entwicklung der verschiedenen globalen Fleischmärkte im Jahr 2021 ist zweigeteilt. Es gab eine starke Nachfrage nach Rindfleisch, insbesondere angeheizt durch den chinesischen Markt und ein begrenztes Angebot, was zu stark gestiegenen Preisen für Rindfleisch und Rindfleischprodukte führte. Das Gleiche gilt für die Märkte für Schaf- und Ziegenfleisch. Im Gegensatz dazu gab es eine gleichbleibende Nachfrage nach Schweinefleisch, aber einen starken Anstieg der Schweinefleischproduktion, wiederum angetrieben durch die enorme Ausdehnung in China. Zurückhalten-de Bestellungen chinesischer Importeure führten dann zu sinkenden Preisen für Schweinefleisch in der zwei-ten Hälfte des Jahres 2021. Auf den Geflügelmärkten ist eine ausgewogenere Entwicklung von Angebot und Nachfrage zu beobachten. Die Schweine- und Geflügelfleischerzeugung der EU-27 ist 2021 im Vergleich zu 2020 etwas gestiegen, während die Rindfleischpro-duktion leicht zurückgegangen ist. Es gibt starke Un-terschiede zwischen den Mitgliedsstaaten. Insbesonde
2021年,全球不同肉类市场的发展出现了分化。在中国市场的推动下,对牛肉的需求尤其强劲,加上供应有限,导致牛肉和牛肉产品的价格大幅上涨。羊肉和山羊肉市场也出现了同样的情况。相反,猪肉需求稳定,但猪肉产量也大幅增加,这再次受到中国扩张的推动。随着中国进口商开始缩短订单,猪肉价格在2021年下半年有所下降。在家禽市场方面,供需发展更加平衡。与2020年相比,2021年欧盟27国的猪肉和禽肉产量略有增加,而牛肉产量略有下降。成员国之间存在着很大的分歧。特别是西班牙、波兰、爱尔兰和荷兰实现了肉类生产的显著扩张。总而言之,欧盟的消费正在停滞。德国猪肉市场面临着非同寻常的挑战。过去几年对猪肉的需求疲软,加上有关养猪和屠宰场及肉类行业工作条件的持续讨论。冠状病毒大流行以及2020年9月爆发的非洲猪瘟导致了严重的营销问题以及猪和猪肉价格的下降趋势。与此相反,与国际市场一样,牛和牛肉市场实现了价格的大幅上涨。由于牛奶市场导致牛肉生产持续下降,而且生产变化具有较长的时滞,因此国内生产暂时没有扩大生产。德国家禽市场在生产和消费方面都很广阔。肉类替代品市场的实际情况和短期发展表明,在不同的产品市场上,肉类替代品仍然是一个相对年轻、不太成熟的市场,市场份额很小。[2][1][1][1][1][1][1]。他说:“我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说,我的意思是说。Das Gleiche gilt f r die Märkte f r Schaf- und Ziegenfleisch。在中国,我们将为您提供优质的产品和服务,为您提供优质的产品和服务。苏黎世最好的中国进口企业在德国的发展与发展在德国的发展与发展Hälfte des Jahres 2021。Auf den Geflügelmärkten ist eine ausgewogenere Entwicklung von Angebot and Nachfrage zu beobachten。Die Schweine- und geflelfleischerzeugung der EU-27 ist 2021 im Vergleich zu 2020 etwas gestiegen, während Die Rindfleischpro-duktion leicht zurgegangen ist。他的名字叫unterschiede zwischen den Mitgliedsstaaten。西班牙人、波兰人、爱尔兰人、荷兰人、德国人、德国人、德国人、德国人、德国人、德国人。Insgesamt stagniert der eu - ver - bruch。Der deutsche schweinefleischmarket steht vor sonderen Herausforderungen。德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国德国死亡冠状病毒大流行与zusätzlich der Ausbruch der afrikkanischen Schweine-pest in September 2020 fhten zu gravierenden vermarktungsproblemen and einem Abwärtstrend der Schweine- und Schweinefleischpreise。我是Gegensatz dazu erzielt der Rinder和rindfleischmarket - wie aufden internationen Märkten - enorme Preissteige-rungen。Die heimische production(生产),即生产,即生产,即生产,即生产,即生产,即生产,即生产,即生产,即生产,即生产。Der deutsche geflgelmarket ist sowohl in Der production(生产)也被称为Verbrauch expsiv(扩张)。市场经济形势与市场经济发展的关系(英文):1 .市场经济与市场经济的关系(英文):1 .市场经济与市场经济的关系(英文):1 .市场经济与市场经济的关系(英文):Produktmärkten。
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引用次数: 0
Der Markt für Milch und Milcherzeugnisse 2021 "牛奶和奶制品市场
IF 0.5 4区 经济学 Q4 AGRICULTURAL ECONOMICS & POLICY Pub Date : 2022-04-11 DOI: 10.30430/71.2022.5.milch
G. Busch, Tim Knöpfel, A. Spiller, Bernhard Brümmer, Clara Mehlhose
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引用次数: 1
期刊
German Journal of Agricultural Economics
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