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Application of a Robust Maximum Diversified Portfolio to a Small Economy’s Stock Market: An Application to Fiji’s South Pacific Stock Exchange 将稳健的最大分散投资组合应用于小型经济体的股票市场:斐济南太平洋证券交易所的应用
Q4 Business, Management and Accounting Pub Date : 2024-09-02 DOI: 10.3390/jrfm17090388
Ronald Ravinesh Kumar, Hossein Ghanbari, Peter Josef Stauvermann
In this study, we apply a novel approach of portfolio diversification—the robust maximum diversified (RMD)—to a small and developing economy’s stock market. Using monthly returns data from August 2019 to May 2024 of 18/19 stocks listed on Fiji’s South Pacific Stock Exchange (SPX), we construct the RMD portfolio and simulate with additional constraints. To implement the RMD portfolio, we replace the covariance matrix with a matrix comprising unexplained variations. The RMD procedure diversifies weights, and not risks, hence we need to run a pairwise regression between two assets (stocks) and extract the R-square to create a P-matrix. We compute each asset’s beta using the market-weighted price index, and the CAPM to calculate market-adjusted returns. Next, together with other benchmark portfolios (1/N, minimum variance, market portfolio, semi-variance, maximum skewness, and the most diversified portfolio), we examine the expected returns against the risk-free (RF) rate. From the simulations, in terms of expected return, we note that eight portfolios perform up to the RF rate. Specifically, for returns between 4 and 5%, we find that max. RMD with positive Sharpe and Sortino (as constraints) and the most diversified portfolio offer comparable returns, although the latter has slightly lower standard deviation and downside volatility and contains 94% of all the stocks. Portfolios with returns between 5% and the RF rate are the minimum-variance, the semi-variance, and the max. RMD with positive Sharpe; the latter coincides with the RF rate and contains the most (94%) stocks compared to the other two. An investor with a diversification objective, some risk tolerance and return preference up to the RF rate can consider the max. RMD with positive Sharpe. However, depending on the level of risk-averseness, the minimum-variance or the semi-variance portfolio can be considered, with the latter having lower downside volatility. Two portfolios offer returns above the RF rate—the market portfolio (max. Sharpe) and the maximum Sortino. Although the latter has the highest return, this portfolio is the least diversified and has the largest standard deviation and downside volatility. To achieve diversification and returns above the RF rate, the market portfolio should be considered.
在本研究中,我们将一种新颖的投资组合多样化方法--稳健最大多样化(RMD)--应用于一个小型发展中经济体的股票市场。利用斐济南太平洋证券交易所(SPX)上市的 18/19 只股票从 2019 年 8 月到 2024 年 5 月的月度回报数据,我们构建了 RMD 投资组合,并在附加约束条件下进行了模拟。为实现 RMD 投资组合,我们用一个包含未解释变异的矩阵取代协方差矩阵。RMD 程序分散的是权重,而不是风险,因此我们需要在两种资产(股票)之间进行配对回归,并提取 R 平方来创建 P 矩阵。我们利用市场加权价格指数计算每种资产的贝塔系数,并利用 CAPM 计算市场调整收益。接下来,我们与其他基准投资组合(1/N、最小方差、市场投资组合、半方差、最大偏度和最分散投资组合)一起,对照无风险(RF)利率检验预期收益。从模拟结果来看,在预期收益率方面,我们注意到有八个投资组合的表现达到了无风险利率。具体来说,对于 4%至 5%之间的回报率,我们发现最大回报率(RMD)为正,而最小回报率(RMD)为负。尽管后者的标准差和下行波动率略低,且包含 94% 的股票,但具有正夏普(Sharpe)和索蒂诺(Sortino)(作为约束条件)的最大 RMD 投资组合与最分散投资组合的回报率相当。收益率介于 5%和 RF 率之间的投资组合是最小方差、半方差和最大方差。后者与 RF 率相吻合,与其他两种组合相比,包含最多(94%)的股票。如果投资者的目标是分散投资,具有一定的风险承受能力,并偏好不超过 RF 利率的回报,则可以考虑最大 RMD(正夏普)。RMD,夏普为正值。不过,根据风险偏好程度,也可以考虑最小方差或半方差投资组合,后者的下行波动性较低。有两种投资组合的回报率高于 RF 率--市场投资组合(最大夏普)和最大 Sortino。虽然后者的回报率最高,但该组合的分散化程度最低,标准差和下行波动率最大。为实现多样化和高于 RF 利率的回报,应考虑市场组合。
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引用次数: 0
Perceptions of South African Accountants on Factors with a Role in the Adoption of Artificial Intelligence in Financial Reporting 南非会计师对在财务报告中采用人工智能的影响因素的看法
Q4 Business, Management and Accounting Pub Date : 2024-09-02 DOI: 10.3390/jrfm17090389
Tankiso Moloi, Hassan Obeid
Purpose—The objective of this study was to conduct a detailed South African study that sought to explore and analyse the views of South African accountants regarding the factors that affect the adoption of AI in financial reporting. In other words, this study aimed to understand what accountants in South Africa think about the use of AI in their field, especially concerning its integration into financial reporting practices. Three main theories underpinned the study, namely, the diffusion of innovation, technology, organisation, and environment framework, and the institutional theory. In essence, the study sought to determine the perception of South Africa’s accountants on these factors. Design/methodology/approach—This study adopted the quantitative research method and descriptive design. In this regard, positivism as a philosophy was preferred. An online survey was developed to collect information from the participants. Participants were recruited based on their affiliation with the four IFAC-recognised accounting bodies in South Africa: SAICA, SAIPA, CIMA, and ACCA. Findings—Th study found that, overall, South African accountants believe that organisational, technological, and environmental factors play a role in adopting artificial intelligence in financial reporting. Originality/value: This study contributes by enriching the understanding of South African accountants’ perceptions of the adoption of artificial intelligence in financial reporting through the lenses of the selected theories.
本研究的目的是在南非开展一项详细的研究,旨在探讨和分析南非会计师对影响在财务报告中采用人工智能的因素的看法。换句话说,本研究旨在了解南非会计师如何看待人工智能在其领域的应用,尤其是将其纳入财务报告实践的问题。本研究以三大理论为基础,即创新扩散、技术、组织和环境框架以及制度理论。从本质上讲,本研究旨在确定南非会计师对这些因素的看法。设计/方法/途径--本研究采用定量研究方法和描述性设计。在这方面,实证主义哲学是首选。为收集参与者的信息,开发了一个在线调查问卷。参与者的招募依据是他们是否隶属于南非四个国际会计师联合会认可的会计机构:SAICA、SAIPA、CIMA 和 ACCA。研究结果--研究发现,总体而言,南非会计师认为组织、技术和环境因素在财务报告中采用人工智能方面发挥了作用。原创性/价值:本研究通过所选理论的视角,丰富了南非会计师对在财务报告中采用人工智能的认识。
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引用次数: 0
Business Model and Strategy for Sustainable Lending of State-Owned Banks in Indonesia 印度尼西亚国有银行可持续贷款的商业模式和战略
Q4 Business, Management and Accounting Pub Date : 2024-09-01 DOI: 10.3390/jrfm17090386
Kepas Antoni Adrianus Manurung, Hermanto Siregar, Dedi Budiman Hakim, Idqan Fahmi, Tanti Novianti
Abstract: Currently, banks are facing challenges in fulfilling the interests of stakeholders, not only from an economic point of view, but also in terms of environmental, social, and governance (ESG) aspects. This is due to the increasing concern for sustainability issues, including lending activities. Lending activities constitute the largest portion of bank assets and are the largest contributor to bank revenues. Thus, banks need certain business models and strategies to encourage sustainable lending growth; otherwise, it will be difficult for banks to fulfill stakeholder’s interests and support sustainable development goals. This study aimed to build a sustainable business model and select sustainable lending strategies in state-owned banks in Indonesia using a value chain approach. The development of a sustainable business model utilizing a triple-layer business model canvas (TLBMC) is based on the results of previous research and sustainability report data of the three state-owned banks. The formulation of strategy selection as the key driver of sustainable lending utilized the analytical hierarchy process (AHP) based on expert respondent data collected through questionnaires. This research showed that the lending distribution business model at state-owned banks in Indonesia, which was built using the TLBMC framework, can realize sustainability goals in the form of a sustainable lending business model. Furthermore, this sustainable business model can be used as a basis for selecting sustainable strategies. In addition, the AHP results yielded alternative strategies in the form of the market development and penetration of green loans and micro, small, and medium enterprises (MSMEs) as the key drivers of sustainable lending growth.
摘要:目前,银行在满足利益相关者的利益方面正面临着挑战,不仅从经济角度,而且从环境、社会和治理(ESG)方面来看都是如此。这是因为人们越来越关注可持续发展问题,包括贷款活动。贷款活动占银行资产的最大部分,也是银行收入的最大来源。因此,银行需要一定的商业模式和战略来鼓励贷款的可持续增长;否则,银行将很难满足利益相关者的利益并支持可持续发展目标。本研究旨在采用价值链方法,在印尼国有银行中建立可持续商业模式并选择可持续贷款战略。在以往研究成果和三家国有银行可持续发展报告数据的基础上,利用三层商业模式画布(TLBMC)开发可持续商业模式。在制定作为可持续贷款关键驱动力的战略选择时,采用了基于通过问卷收集的专家受访者数据的分析层次过程(AHP)。研究结果表明,印尼国有银行利用 TLBMC 框架建立的贷款分销业务模式能够以可持续贷款业务模式的形式实现可持续发展目标。此外,这种可持续业务模式还可作为选择可持续战略的基础。此外,AHP 结果还得出了绿色贷款和微型、小型和中型企业(MSMEs)的市场开发和渗透作为可持续贷款增长主要驱动力的备选战略。
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引用次数: 0
Using an Ensemble of Machine Learning Algorithms to Predict Economic Recession 使用机器学习算法组合预测经济衰退
Q4 Business, Management and Accounting Pub Date : 2024-09-01 DOI: 10.3390/jrfm17090387
Leakey Omolo, Nguyet Nguyen
The COVID-19 pandemic and the current wars in some countries have put incredible pressure on the global economy. Challenges for the U.S. include not only economic factors, major disruptions, and reorganizations of supply chains, but also those of national security and global geopolitics. This unprecedented situation makes predicting economic crises for the coming years crucial yet challenging. In this paper, we propose a method based on various machine learning models to predict the probability of a recession for the U.S. economy in the next year. We collect the U.S.’s monthly macroeconomic indicators and recession data from January 1983 to December 2023 to predict the probability of an economic recession in 2024. The performance of the individual economic indicator for the coming year was predicted separately, and then all of the predicted indicators were used to forecast a possible economic recession. Our results showed that the U.S. will face a high probability of being in a recession period in the last quarter of 2024.
COVID-19 大流行病和当前一些国家的战争给全球经济带来了巨大压力。美国面临的挑战不仅包括经济因素、重大干扰和供应链重组,还包括国家安全和全球地缘政治。这种前所未有的形势使得预测未来几年的经济危机变得至关重要而又充满挑战。在本文中,我们提出了一种基于各种机器学习模型的方法,用于预测明年美国经济衰退的概率。我们收集了美国从 1983 年 1 月到 2023 年 12 月的月度宏观经济指标和经济衰退数据,以预测 2024 年经济衰退的概率。我们分别预测了各个经济指标在未来一年的表现,然后利用所有预测指标来预测可能出现的经济衰退。结果表明,美国在 2024 年最后一个季度陷入经济衰退的概率很高。
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引用次数: 0
The Effectiveness of Credit Risk Mitigation Strategies Adopted by Ghanaian Commercial Banks in Agricultural Finance 加纳商业银行在农业融资中采取的信贷风险缓解策略的有效性
Q4 Business, Management and Accounting Pub Date : 2024-08-29 DOI: 10.3390/jrfm17090385
Abraham Nyebar, Adefemi A. Obalade, Paul-Francois Muzindutsi
Lending to the agricultural sector by commercial banks in Ghana is characterized by high credit risk. Empirical evidence suggests that commercial banks in Ghana have credit risk management (CRM) challenges. This study explores the credit risk mitigation strategies adopted by commercial banks to minimize credit risk in agricultural finance in Ghana. The study adopted a mixed-method approach using a survey questionnaire and interview instruments. The findings indicate that some of the strategies used by commercial banks to mitigate credit risk in agricultural finance do not meet commercial banks’ CRM needs. In addition, Ghanaian commercial banks have not fully adopted some of the recommended strategies that are used to mitigate credit risk associated with agricultural lending. The study unveils some appropriate strategies used to mitigate credit risk exposure in agricultural finance among commercial banks. These strategies include agricultural value-chain financing, collaboration with off-takers, incentive-based and risk-sharing schemes, adoption of a holistic agricultural value chain financing, policy interventions, use of agricultural insurance pool, and the proper structuring of agricultural loans.
加纳商业银行对农业部门的贷款具有高信贷风险的特点。经验证据表明,加纳的商业银行面临着信贷风险管理(CRM)方面的挑战。本研究探讨了商业银行为最大限度地降低加纳农业融资中的信贷风险而采取的信贷风险缓解策略。研究采用了混合方法,使用了调查问卷和访谈工具。研究结果表明,商业银行为降低农业金融信贷风险而采取的一些策略并不能满足商业银行客户关系管理的需求。此外,加纳的商业银行也没有完全采用一些建议的策略来降低与农业贷款相关的信贷风险。本研究揭示了商业银行用于降低农业信贷风险的一些适当策略。这些战略包括农业价值链融资、与承购商合作、基于激励的风险分担计划、采用整体农业价值链融资、政策干预、使用农业保险池以及适当构建农业贷款结构。
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引用次数: 0
Asymmetric Impact of Active Management on the Performance of ESG Funds 主动管理对环境、社会和公司治理基金绩效的不对称影响
Q4 Business, Management and Accounting Pub Date : 2024-08-29 DOI: 10.3390/jrfm17090383
Barbara Abou Tanos, Omar Farooq, Mohammed Bouadi, Neveen Ahmed
This paper investigates the asymmetric impact of fund active management style on the performance of ESG funds. Unlike conventional measures of synchronicity, we propose new measures that capture the asymmetric patterns in a fund’s management style in upside and downside market conditions. Our data includes 170 equity funds that are identified as socially responsible, with a period spanning from 2010 to 2022. Our proposed methodology allows us to capture the asymmetric patterns in the fund management styles under different market conditions while mitigating the challenge of outliers, which is crucial when assessing funds’ active management activities. We find that while ESG funds promote sustainability, their active management is only beneficial during periods of market downturns. Our results are robust after controlling for different funds characteristics, for several active management proxies, and across various model specifications. This paper thus provides crucial guidelines for fund managers since it shows that their success is greatly influenced by their time-varying skills and management style in changing market conditions. Our findings incentivize ESG fund managers to pursue information acquisition activities during market downturns, as these activities improve market informational efficiency while aligning with their sustainability goals.
本文研究了基金主动管理风格对 ESG 基金业绩的非对称影响。与传统的同步性衡量方法不同,我们提出了新的衡量方法,以捕捉在市场上行和下行条件下基金管理风格的非对称模式。我们的数据包括 170 只被认定为社会责任基金的股票基金,时间跨度为 2010 年至 2022 年。我们提出的方法使我们能够捕捉不同市场条件下基金管理风格的非对称模式,同时减轻异常值带来的挑战,这对评估基金的主动管理活动至关重要。我们发现,虽然 ESG 基金促进了可持续性,但其主动管理仅在市场低迷时期有利。在控制了不同的基金特征、多个主动管理代用指标以及不同的模型规格后,我们的结果是稳健的。因此,本文为基金经理提供了重要的指导,因为它表明,在不断变化的市场条件下,基金经理的成功在很大程度上受到他们随时间变化的技能和管理风格的影响。我们的研究结果激励 ESG 基金经理在市场低迷时期开展信息获取活动,因为这些活动在提高市场信息效率的同时,也符合他们的可持续发展目标。
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引用次数: 0
The NGDOs Efficiency: A PROMETHEE Approach 非政府组织的效率:PROMETHEE 方法
Q4 Business, Management and Accounting Pub Date : 2024-08-26 DOI: 10.3390/jrfm17090382
Susana Álvarez-Otero, Emma Álvarez-Valle
The current economic and political crisis has brought about a change in the environment in which non-governmental development organisations (NGDOs) have traditionally operated. This change can be summed up as a reduction in the funds they receive and an increase in the population they must serve. The need then arises to have mechanisms that allow an analysis of the good work performed by the NGDOs. Knowing the efficiency of the NGDOs in the management of their previous projects can contribute towards improving their future achievements. The aim of this research is to establish some objective indicators that allow an evaluation of the efficiency of these organisations. Firstly, a detailed analysis of the regulation of the three agencies is conducted (Spanish-AECID, European-EuropeAid, and American-USAID). This allows us to synthesise the indicators of good performance of the NGDO based on the study of the eligibility criteria of public donors. The research concludes with the study of the efficiency following the Promethee Approach. Our results reveal that 44.6% of the NGDOs (33 out of the 74 studied) operate inefficiently, compared to 29.7%, which are efficient.
当前的经济和政治危机改变了非政府发展组织(NGDOs)传统的运作环境。这种变化可以概括为:它们获得的资金减少,必须服务的人口增加。因此,有必要建立机制,对 NGDOs 所做的出色工作进行分析。了解非政府组织在管理其以往项目方面的效率,有助于改善其未来的成就。本研究的目的是制定一些客观指标,以便对这些组织的效率进行评估。首先,我们对三个机构(西班牙-西班牙国际合作发展署、欧洲-欧洲援助署和美国-美国国际开发署)的规章制度进行了详细分析。这样,我们就可以在研究公共捐助者资格标准的基础上,归纳出 NGDO 的良好绩效指标。本研究最后按照普罗米修斯方法对效率进行了研究。研究结果显示,44.6%的非政府发展组织(74 个研究对象中的 33 个)运作效率低下,而 29.7%的非政府发展组织运作效率较高。
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引用次数: 0
ESG Performance and Systemic Risk Nexus: Role of Firm-Specific Factors in Indian Companies 环境、社会和公司治理绩效与系统性风险的联系:印度公司特定因素的作用
Q4 Business, Management and Accounting Pub Date : 2024-08-25 DOI: 10.3390/jrfm17090381
Mithilesh Gidage, Shilpa Bhide, Rajesh Pahurkar, Ashutosh Kolte
This study investigates the ESG performance–systemic risk (SR) nexus among Indian companies. Using the beta coefficient from the Capital Asset Pricing Model (CAPM) and statistical analysis, it explores how ESG performance affects SR. The findings reveal that firms with higher ESG scores have lower SR sensitivity. Notably, there is a significant difference in risk sensitivity between high- and low-ESG-rated companies, with ESG effects being less pronounced in high-cap firms compared to low-cap firms. Conversely, large firms, older firms, and those with lower borrowing costs show a diminished effect of ESG ratings on their SR sensitivity. These results underscore the importance of firm-specific characteristics in determining the efficacy of ESG strategies in risk mitigation. This study reveals that ESG performance reduces SR, with market valuation affecting this relationship.
本研究调查了印度公司的环境、社会和公司治理绩效与系统风险(SR)之间的关系。它利用资本资产定价模型(CAPM)的贝塔系数和统计分析,探讨了环境、社会和公司治理绩效如何影响系统风险。研究结果表明,ESG 分数越高的公司,SR 敏感性越低。值得注意的是,ESG评级高的公司与ESG评级低的公司在风险敏感性上存在显著差异,ESG对高市值公司的影响不如对低市值公司明显。相反,大公司、老公司和借贷成本较低的公司的 ESG 评级对其 SR 敏感性的影响较小。这些结果凸显了公司的具体特征在决定 ESG 战略在降低风险方面的有效性时的重要性。本研究揭示了环境、社会和公司治理绩效会降低 SR,而市场估值会影响这种关系。
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引用次数: 0
Consumers’ Financial Knowledge in Central European Countries in the Light of Consumer Research 从消费者研究看中欧国家消费者的金融知识
Q4 Business, Management and Accounting Pub Date : 2024-08-23 DOI: 10.3390/jrfm17090379
Łukasz Gębski, Georges Daw
Consumer protection in the financial market has several dimensions. From a formal point of view, consumer rights are guaranteed by law. Educational programs are implemented in schools and the media to promote knowledge and responsible use of financial products and services. Despite the efforts made, the number of incorrect and suboptimal financial decisions is so high that the risk of households falling into excessive debt remains significant. The limited effectiveness of the law led to the claim that only effective education can reduce the risk of suboptimal financial decisions. Unfortunately, the efforts made in this area are not fully satisfactory. The study of financial knowledge of consumers, which was conducted in Poland in January 2024, aimed to verify consumer errors and their nature. As part of the consumer study, not only declared knowledge was verified, but also actual knowledge. The researchers’ doubts resulted from a comparison of the results of scientific research in this area with the current market situation. Consumers declare a high level of knowledge of economic and financial concepts. In practice, however, they make mistakes that do not only indicate behavioral cognitive errors but also a lack of knowledge. The test questions were constructed in such a way as to verify the declared knowledge (based on verification questions). These showed that the actual level of knowledge was lower than the declared one. A review of the literature and studies of financial knowledge and financial competence of consumers in Central European countries was also carried out. Analysis of the results allowed for the formulation of conclusions regarding the educational gap in relation to social characteristics. The conclusions resulting from the study raise questions about the effectiveness of the educational methods used and indicate possible directions of changes in the consumer regulation policy, the aim of which is to ensure a high level of consumer protection.
金融市场的消费者保护涉及多个方面。从形式上看,消费者权利受到法律保障。学校和媒体实施了教育计划,以促进对金融产品和服务的了解和负责任的使用。尽管做出了这些努力,但不正确和不理想的金融决策仍然很多,以至于家庭陷入过度债务的风险仍然很大。由于法律的效力有限,因此有人声称,只有有效的教育才能降低次优金融决策的风险。遗憾的是,这方面的努力并不完全令人满意。2024 年 1 月在波兰进行的消费者金融知识研究旨在核实消费者的错误及其性质。作为消费者研究的一部分,不仅要核实申报知识,还要核实实际知识。研究人员将该领域的科学研究结果与当前的市场情况进行了比较,从而产生了疑问。消费者宣称对经济和金融概念有很高的了解。然而,在实际操作中,他们所犯的错误不仅表明行为认知上的错误,也表明知识的匮乏。测试问题的设计旨在验证消费者所宣称的知识水平(以验证问题为基础)。结果表明,实际知识水平低于申报知识水平。此外,还对有关中欧国家消费者金融知识和金融能力的文献和研究进行了回顾。通过对结果的分析,得出了与社会特征相关的教育差距的结论。研究得出的结论对所使用的教育方法的有效性提出了质疑,并指出了消费者监管政策可能的改革方向,其目的是确保对消费者的高水平保护。
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引用次数: 0
A Framework for Investment and Risk Assessment of Agricultural Projects 农业项目投资与风险评估框架
Q4 Business, Management and Accounting Pub Date : 2024-08-23 DOI: 10.3390/jrfm17090378
Leonir Vilani, Antonio Zanin, Mauro Lizot, Marcelo Gonçalves Trentin, Paulo Afonso, José Donizetti de Lima
Investment appraisal of agricultural projects (APs) is particularly demanding due to several factors. Namely, APs may have longer time horizons, higher external and internal volatility, and uncertainty caused by less control of production and external conditions (e.g., climatic conditions and market demand). Indeed, these APs may face high and different risks that should be managed properly. Nevertheless, both the literature and practice do not address such complexity and uncertainty conveniently. Thus, this research aimed to develop an integrative and easy-to-use framework to support the investment appraisal of APs, which goes beyond the traditional approach based on simple and deterministic models. This framework is based on an approach that includes several capital budgeting techniques integrating extended multi-index methodology (EMIM), Monte Carlo simulation (MCS), and real options analysis (ROA). This framework allows dealing with different risk and uncertainty scenarios and managerial flexibilities, which allow alternative and additional investment options. A simpler and easier approach can be particularly important for family agribusinesses, which usually do not use sophisticated decision-making tools. An AP in an agrosilvopastoral system (i.e., agriculture, livestock, forestry) was used to present and discuss the proposed methodology considering the relevance of such systems for sustainable agriculture and their higher risk and complexity when compared to traditional approaches. The main contribution of the framework is structuring a set of steps based on several tools to carry out investment appraisal in APs.
由于若干因素,农业项目(APs)的投资评估要求特别高。也就是说,农业项目可能具有较长的时间跨度、较高的外部和内部波动性,以及由于对生产和外部条件(如气候条件和市场需求)控制较少而造成的不确定性。事实上,这些非营利组织可能面临高风险和不同的风险,应加以妥善管理。然而,文献和实践都没有对这种复杂性和不确定性进行便捷的处理。因此,本研究旨在开发一个综合且易于使用的框架,以支持杀伤人员地雷的投资评估,该框架超越了基于简单和确定性模型的传统方法。该框架基于一种包含多种资本预算技术的方法,包括扩展多指数方法(EMIM)、蒙特卡罗模拟(MCS)和实物期权分析(ROA)。该框架允许处理不同的风险和不确定性情景以及管理灵活性,从而允许替代和额外的投资选择。对于通常不使用复杂决策工具的家庭农业企业来说,更简单易行的方法尤为重要。考虑到此类系统与可持续农业的相关性,以及与传统方法相比其较高的风险性和复杂性,我们使用了农-水-牧系统(即农业、畜牧业、林业)中的 AP 来介绍和讨论所建议的方法。该框架的主要贡献在于,以若干工具为基础,构建了一套对可持续农业进行投资评估的步骤。
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引用次数: 0
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