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A GAAP Critic’s Guide to Corporate Income Taxes GAAP公司所得税评论家指南
Pub Date : 2013-06-10 DOI: 10.2139/ssrn.2003900
M. Cowan
The basic framework for accounting for income taxes under generally accepted accounting principles (GAAP) has been in place for nearly 20 years. Influential GAAP commentators have recently called for a thorough review of the GAAP tax accounting rules in light of normative accounting theory. Before such a review can take place, GAAP reformers must be armed with an overview of the legal, economic, and practical realities of the corporate income tax in today’s business environment. Nothing in the extant literature provides such an overview. This Article provides that overview, drawing on classic and contemporary authorities from a variety of perspectives. Among other topics, this Article reviews the legal definition of a tax, demonstrates how taxes are noncontractual in nature, discusses issues of economic incidence, reviews the reality of tax planning in today’s business environment, reviews the legal literature that describes the government as a “shareholder” in all firms, and shows the interconnected relationship among GAAP, corporate tax planning, and government enforcement efforts. This Article helps bridge the GAAP and tax law worlds by laying the ground work for GAAP critics to thoroughly examine and critique the current GAAP rules for income taxes.
根据公认会计原则(GAAP)计算所得税的基本框架已经存在了近20年。有影响力的GAAP评论员最近呼吁在规范会计理论的基础上对GAAP税务会计规则进行彻底的审查。在进行这样的审查之前,GAAP改革者必须对当今商业环境中企业所得税的法律、经济和实际现实进行概述。现存文献中没有任何文献提供这样的概述。本文从不同的角度,借鉴了经典和当代权威的观点,提供了这一概述。除其他主题外,本文回顾了税收的法律定义,展示了税收在本质上是如何非契合性的,讨论了经济关联问题,回顾了当今商业环境中税收筹划的现实,回顾了将政府描述为所有公司“股东”的法律文献,并展示了公认会计准则、企业税收筹划和政府执法努力之间的相互关系。本文通过为GAAP批评者彻底检查和批评现行GAAP所得税规则奠定基础,帮助弥合GAAP和税法世界。
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引用次数: 0
Earnings Management in the Context of Fair Value Accounting: Adjusting the Modified Jones Model to Fair Value Accounting 公允价值会计背景下的盈余管理:修正的琼斯模型对公允价值会计的调整
Pub Date : 2013-05-02 DOI: 10.2139/ssrn.2214777
Changling Chen, Corinna Ewelt-Knauer
Since the late 1980s, the Financial Accounting Standards Board has implemented several new fair value accounting rules that have resulted in unrealized fair value gains or losses in net income. However, accrual-based earnings management models such as the Modified Jones Model (MJM) of Dechow, Sloan, and Sweeney (1995) and other accrual models in the literature do not consider the net income effects of fair value accounting. The fair value hierarchy of Statement of Financial Accounting Standard No. 157 implies that valuation of level 1 and level 2 instruments is subject to observable market inputs, whereas the valuation inputs of level 3 are unobservable. Therefore, with respect to earnings management, level 3 instruments are more likely to be manipulated relative to level 1 and level 2 instruments. In this paper, we adjust the MJM by adding level 1 and level 2 instruments as explanatory variables to nondiscretionary accruals; we classify net income effects of level 3 instruments as discretionary accruals in our Fair Value Adjusted Modified Jones Model (FVAMJM). We show that the FVAMJM is more powerful than the MJM in detecting earnings manipulation based on level 3 instruments and is equally good in detecting expense and revenue manipulations. In addition, the nondiscretionary accruals derived under FVAMJM have incremental explanatory power to firm market value beyond the accruals of the traditional MJM; the discretionary accruals derived under FVAMJM contribute to identifying companies meeting or beating earnings targets after controlling for MJM discretionary accruals.
自20世纪80年代末以来,财务会计准则委员会实施了几项新的公允价值会计规则,这些规则导致了净收入中未实现的公允价值收益或损失。然而,基于权责发生制的盈余管理模型,如Dechow、Sloan和Sweeney(1995)的修正琼斯模型(Modified Jones Model, MJM)和文献中的其他权责发生制模型,并没有考虑公允价值会计的净收入效应。财务会计准则第157号的公允价值层次意味着,第一级和第二级工具的估值取决于可观察的市场输入,而第三级工具的估值输入是不可观察的。因此,就盈余管理而言,相对于第1级和第2级工具,第3级工具更有可能被操纵。在本文中,我们通过增加一级和二级工具作为非可操纵性应计项目的解释变量来调整MJM;我们在公允价值调整后的修正琼斯模型(FVAMJM)中将三级工具的净收入影响归类为可自由支配的应计项目。我们表明,FVAMJM在检测基于3级工具的盈余操纵方面比MJM更强大,并且在检测费用和收入操纵方面同样出色。此外,在FVAMJM下得出的非可支配性应计利润对企业市场价值的解释能力比传统MJM下的应计利润更强;FVAMJM下的可操纵性应计利润有助于识别在控制了MJM可操纵性应计利润后达到或超过盈利目标的公司。
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引用次数: 0
Competition and Management Accounting Information and Control System Design: Survey of Australian Manufacturing and Service Organisations 竞争与管理会计信息和控制系统设计:澳大利亚制造业和服务业组织调查
Pub Date : 2013-01-14 DOI: 10.2139/ssrn.2132763
S. Wallace
The purpose of this study is to improve the understanding of the relation between management accounting information and control system design and environmental uncertainty i.e. intensity of competition. This study empirically tests the association between the types of competitive intensity and the investment in integrated cost management systems. The investment of cost management systems is measured using a comprehensive set of cost management practices across the value chain. These systems are tested as integrated strategies i.e. either upstream focussed or downstream focussed. Based on a sample of 77 responses from a survey of Australian manufacturing and service organisations, the study demonstrates that the association between the level of integrated cost management system investment and the individual intensity of competition dimensions of purchase and marketing for upstream-focussed systems whereas downstream-focussed systems are associated with the individual dimensions of price, technical personnel and purchase competitive intensities. This study is one of a limited number that provide evidence of (i) the importance of controlling for the type of competition in the design of management accounting information and control systems, specifically for cost management systems; and (ii) provides a comprehensive examination of cost management practice investment and integration across the value chain.
本研究的目的在于增进对管理会计资讯与控制制度设计与环境不确定性(即竞争强度)之间关系的了解。本研究实证检验了竞争强度类型与综合成本管理系统投资之间的关系。成本管理系统的投资是通过整个价值链的一套全面的成本管理实践来衡量的。这些系统作为综合策略进行测试,即要么以上游为重点,要么以下游为重点。基于对澳大利亚制造和服务组织调查的77个回复样本,该研究表明,上游集中系统的集成成本管理系统投资水平与采购和营销的个体竞争强度之间的关联,而下游集中系统与价格、技术人员和采购竞争强度的个体维度相关。本研究是提供以下证据的少数研究之一:(i)在设计管理会计信息和控制系统,特别是成本管理系统时,控制竞争类型的重要性;(ii)对成本管理实践、投资和整个价值链的整合进行了全面考察。
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引用次数: 1
Cost of Capital and Earnings Transparency 资本成本和收益透明度
Pub Date : 2013-01-01 DOI: 10.2139/ssrn.1348245
Mary E. Barth, Yaniv Konchitchki, W. Landsman
We provide evidence that firms with more transparent earnings enjoy a lower cost of capital. We base our earnings transparency measure on the extent to which earnings and change in earnings covary contemporaneously with returns. We find a significant negative relation between our transparency measure and subsequent excess and portfolio mean returns, and expected cost of capital, even after controlling for previously documented determinants of cost of capital.
我们提供的证据表明,收益更透明的公司享有更低的资本成本。我们的盈利透明度指标基于盈利和盈利变化与收益同时协变的程度。我们发现,即使在控制了先前记录的资本成本决定因素之后,我们的透明度措施与随后的超额和投资组合平均回报以及预期资本成本之间存在显著的负相关关系。
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引用次数: 384
How to Evaluate the Share Price Performance During CEO Tenure: The Case of Josef Ackermann’s Stewardship at Deutsche Bank 如何评估CEO任期内的股价表现:以德意志银行首席执行官约瑟夫•阿克曼为例
Pub Date : 2012-10-30 DOI: 10.2139/ssrn.2136609
Stephan H. Späthe
This clinical paper gives guidance on how to correctly compute and evaluate the share price performance of a corporation during a specific CEO tenure. Although the emphasis is on Deutsche Bank’s share price performance between 2002 and 2012, a lot of general questions relevant for this kind of assessment are tackled as well. For instance it is shown that currency adjustments are essential when comparing global companies if their shares are listed in different currency areas. In addition, the differences of dollar-weighted versus time-weighted returns for peer groups during consecutive observation periods are discussed.At Deutsche Bank’s AGM at the end of May 2012, the CEO tenure of Josef Ackermann officially ended after ten years in office. During his stewardship, Deutsche Bank established itself in the bulge bracket of investment banking and was one of the few global banks which survived the financial crisis without any direct government support. Whether his regime was successful for shareholders is controversial. It is shown that in spite of the fact that Deutsche Bank’s original share price performance during Ackermann’s stewardship has been negative by −50 %; it significantly outperformed other German financial institutions, international sector indices or hand-selected investment banking peer groups. However, it is not clear if this relative outperformance is solely attributable to Ackermann’s and his board members’ management capabilities or perhaps a result of implicit guarantees by the German government.Moreover, share price performance figures published by Deutsche Bank are reviewed. It turns out that some figures overstate the real performance. The same is true for e.g. Morgan Stanley’s performance graph in its latest 10-K report. This finally raises the question, how reliable share price performance figures presented by companies are. This is important for the ongoing pay-for-performance discussion because already the underlying data of share price performance could be biased.
这篇临床论文给出了如何正确计算和评估一个公司在特定的CEO任期内的股价表现的指导。尽管本书的重点是德意志银行2002年至2012年的股价表现,但也涉及了许多与此类评估相关的一般性问题。例如,研究表明,如果跨国公司的股票在不同的货币区域上市,在比较它们时,货币调整是必不可少的。此外,还讨论了在连续观察期内同行组的美元加权与时间加权收益的差异。在2012年5月底的德意志银行年度股东大会上,约瑟夫•阿克曼(Josef Ackermann)在任职10年后的CEO任期正式结束。在他的领导下,德意志银行确立了自己在投资银行领域的地位,并成为少数几家在没有任何政府直接支持的情况下度过金融危机的全球性银行之一。对于股东而言,他的制度是否成功尚有争议。结果表明,尽管在阿克曼的管理期间,德意志银行的原始股价表现为负- 50%;它的表现明显优于其他德国金融机构、国际行业指数或精心挑选的投行同行。然而,目前尚不清楚这种相对优异的表现是否完全归因于阿克曼及其董事会成员的管理能力,或者可能是德国政府隐性担保的结果。此外,本文还回顾了德意志银行公布的股价表现数据。事实证明,有些数字夸大了实际表现。例如,摩根士丹利(Morgan Stanley)在其最新的10-K报告中的业绩图表也是如此。这最终提出了一个问题:企业提供的股价表现数据有多可靠?这对于正在进行的绩效薪酬讨论很重要,因为股价表现的基础数据可能已经存在偏差。
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引用次数: 0
Pay for Creativity? The Complementarity between Individual Rewards And Subjective Evaluations of Non-Task-Related Performance in Incentive System Design 为创意付费?激励制度设计中个人奖励与非任务绩效主观评价的互补性
Pub Date : 2012-08-20 DOI: 10.2139/ssrn.2132726
Isabella Grabner
In this paper, I empirically investigate the impact of an organization’s reliance on collaborative creativity on the design of incentive systems. In creativity-reliant firms, i.e., firms for which the primary source of value creation lies in the creativity of their core employees, incentive system design is particularly challenging, since the nature of creative work constrains the feasibility of extrinsic incentives but at the same time creates a need for them. Accordingly, literature seems to suggest that the use of incentives renders people not creative enough, while a lack of them makes them “too creative”. I argue that a solution to this dilemma can be found in (1) acknowledging that the decision to use individual rewards is not made in isolation, and (2) viewing the incentive system as a set of complementary choices. I theoretically argue and empirically show that subjective evaluations of non-task-related performance and individual rewards are complements in creativity-reliant settings. Given the implications of this complementarity for incentive system design, I further show that reliance on collaborative creativity increases the use of individual rewards in the presence of such subjective evaluations, while it decreases its use in the their absence.
在本文中,我实证研究了一个组织对协作创造力的依赖对激励制度设计的影响。在依赖创造力的公司中,即价值创造的主要来源在于其核心员工的创造力的公司,激励制度的设计特别具有挑战性,因为创造性工作的性质限制了外部激励的可行性,但同时又创造了对它们的需求。因此,文献似乎表明,激励的使用使人们缺乏创造力,而缺乏激励则使他们“过于有创造力”。我认为解决这一困境的方法是:(1)承认使用个人奖励的决定不是孤立做出的,(2)将激励系统视为一组互补的选择。我从理论上论证和经验上表明,对与任务无关的表现和个人奖励的主观评估,在依赖创造力的环境中是互补的。考虑到这种互补性对激励系统设计的影响,我进一步表明,在存在这种主观评估的情况下,对协作创造力的依赖增加了个人奖励的使用,而在没有主观评估的情况下,它减少了个人奖励的使用。
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引用次数: 0
Caterpillar, Inc: The Impact of Decision Biases and Risk on Capital Budgeting 卡特彼勒公司:决策偏差和风险对资本预算的影响
Pub Date : 2012-08-20 DOI: 10.2139/SSRN.2132944
T. West, Tammy R. Waymire
Managers at the Caterpillar plant in Aurora, Illinois were facing a request from senior executives at the home office in Peoria, Illinois for a “Footprint Study” – Identify the best global source (location) for production of the company’s new hybrid/electric exoloader. Using Caterpillar’s capital expenditure model (CapX model), students must decide whether to recommend expanding and refocusing an existing production facility in Aurora IL (Scenario A), or building a new facility in China (Scenario B). On the surface, the standard capital budgeting template looks like a clear manifestation of the rational decision making model. Decision makers, however, are subject to a predictable set of psychological biases (decision heuristics) that may surreptitiously influence the underlying assumptions used to produce a “rational decision” (Bazerman, 2009; Kahneman et al. 2011). The case introduces students to a variety of these decision biases in the context of the capital budgeting decision. Students are required to examine how the assumptions underlying Caterpillar’s capital budgeting template could be influenced by individuals’ decision biases. Furthermore, the case provides an opportunity for students identify the risk factors identified in Caterpillar’s 10-K and consider how the overall risk environment influences the company’s financial statements. Given their assessments of the overall risk environment, student must incorporate their assessments into a determination of the investment hurdle rates appropriate for the alternative capital expenditure scenarios. Ultimately, students must identify the assumptions underlying the CapX model and evaluate these assumptions on two dimensions: (1) importance of the assumption, and (2) uncertainty of the assumption. Students can use the resulting 2 × 2 matrix of assumptions to think about how they would prioritize their time in terms validating the model assumptions and assess how decision biases might influence assumptions uncertainty. In the terms of class implementation, the case is structured to essentially create a debate between those who support Scenario A (U.S. production) and those who support Scenario B (China production). For every argument in support of Scenario A, students also must develop a counter-argument against Scenario A and in favor Scenario B. The objective is to increase students’ ability to think using a 360° perspective. By pursuing a 360° perspective students open themselves up to a wider decision making perspective that might include innovative and potentially superior decision alternatives.
卡特彼勒伊利诺斯州奥罗拉工厂的经理们正面临着伊利诺斯州皮奥里亚总部高级管理人员提出的“足迹研究”要求——确定公司新型混合动力/电动装载机生产的最佳全球来源(地点)。使用卡特彼勒的资本支出模型(CapX模型),学生们必须决定是建议在伊利诺伊州奥罗拉扩大和重新调整现有的生产设施(场景A),还是在中国建立一个新设施(场景B)。从表面上看,标准的资本预算模板看起来像是理性决策模型的清晰体现。然而,决策者受制于一组可预测的心理偏差(决策启发式),这些偏差可能会暗中影响用于产生“理性决策”的潜在假设(Bazerman, 2009;Kahneman et al. 2011)。本案例向学生介绍了资本预算决策背景下的各种决策偏差。学生需要考察卡特彼勒资本预算模板的基本假设如何受到个人决策偏差的影响。此外,该案例为学生提供了一个机会,让他们识别卡特彼勒10-K中确定的风险因素,并考虑整体风险环境如何影响公司的财务报表。鉴于他们对整体风险环境的评估,学生必须将他们的评估纳入适合替代资本支出情景的投资门槛率的确定中。最后,学生必须确定CapX模型背后的假设,并从两个方面评估这些假设:(1)假设的重要性,(2)假设的不确定性。学生可以使用由此产生的2 × 2假设矩阵来思考他们如何在验证模型假设方面优先考虑他们的时间,并评估决策偏差如何影响假设的不确定性。在类实现方面,案例的结构基本上是在支持场景a(美国生产)和支持场景B(中国生产)的人之间创建一个辩论。对于支持情景A的每一个论点,学生也必须提出反对情景A和赞成情景b的反论点。目的是提高学生使用360°视角思考的能力。通过追求360度的视角,学生们将自己打开到一个更广阔的决策视角,其中可能包括创新的和潜在的更好的决策选择。
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引用次数: 0
In Our Ivory Towers? The Research-Practice Gap in Management Accounting: An Academic Perspective 在我们的象牙塔里?管理会计的研究与实践差距:一个学术视角
Pub Date : 2012-08-15 DOI: 10.2139/ssrn.2130224
Basil P. Tucker, L. Parker
Motivated by repeated observations in the management accounting literature concerning the relevance of academic research to policy and practice communities, this study reports on an exploratory investigation of the perceptions and attitudes of a sample of 64 senior management accounting academics from 55 universities in 14 countries about the extent to which academic management accounting research does, and should inform practice. Drawing on Diffusion of Innovations theory as a point of departure, and based on evidence obtained from a questionnaire survey and subsequent interviews, our findings reveal the prevalence of two broad schools of thought. One school, represented by the majority of senior academics, and which we have identified as, the ‘majority view’, holds there is a significant and widening ‘gap’ between academic research and the practice of management accounting, and that this gap is of considerable concern. In contrast, the other school, which we identify as ‘the minority view’, holds that a divide between academic management accounting research and practice is appropriate, and that efforts to bridge this divide are unnecessary, untenable or irrelevant. From this empirical evidence, we advance a conceptual framework distinguishing between the ‘means’ and ‘ends’ of academic research which enables these two opposing schools to be located relative to each other. On the basis of this framework, we contend that framing the relationship between academic research and practice as a ‘gap’ is potentially an oversimplification, and directs attention away from the broader but fundamental question of the role and societal relevance of academic research in management accounting.
由于管理会计文献中关于学术研究与政策和实践社区相关性的反复观察,本研究报告了一项探索性调查,调查了来自14个国家55所大学的64名高级管理会计学者的看法和态度,调查了学术管理会计研究在多大程度上能够为实践提供信息。以创新扩散理论为出发点,并基于从问卷调查和随后的访谈中获得的证据,我们的发现揭示了两大思想流派的盛行。以大多数资深学者为代表的一种学派,我们称之为“多数观点”,认为学术研究和管理会计实践之间存在着显著且不断扩大的“差距”,这种差距值得关注。相比之下,另一种学派,我们称之为“少数派观点”,认为学术管理会计研究和实践之间的鸿沟是适当的,而弥合这一鸿沟的努力是不必要的、站不住脚的或无关紧要的。根据这一经验证据,我们提出了一个区分学术研究的“手段”和“目的”的概念框架,使这两个对立的学派能够相对地定位。在此框架的基础上,我们认为,将学术研究与实践之间的关系视为“差距”可能是一种过度简化,并将注意力从管理会计中学术研究的作用和社会相关性这一更广泛但基本的问题上转移开。
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引用次数: 26
Accounting, Risk Management and the Selection of Interactive Controls: Which, When and Why? 会计、风险管理与互动控制的选择:哪种、何时、为何?
Pub Date : 2012-06-28 DOI: 10.2139/ssrn.2132405
A. Mikes
Taking a multiple-control perspective, I investigate a control debacle and its aftermath at a financial services company (MultiBank), focusing on an insurance division (EurInsurance) that suffered large losses in the European insurance crisis of 2002-2003. The study tracks the promotion and use of a set of accounting and risk controls put in place to control the troubled insurance division, and discusses how and why particular management control systems shift in and out of top managerial focus. The study investigates Simons’ (1990, 1991) argument that it is top management’s view of a firm’s key strategic uncertainties that motivates their choice of control systems to be used interactively. Combining the process perspective of a longitudinal field study with the institutional logics perspective, I argue that top management’s control choice is motivated by both the logic of functionalism (relevance) and the logic of appropriateness (legitimacy) of particular controls - and that both of these are socially constructed by proponents.First, behind the various control systems there are active controller groups who, in competition for executive-level visibility, further their solutions for organizational control problems and engage in ‘credentializing’ (Power, 1992) to support their claims. At MultiBank, accountants drew on the institutional logic of accounting as a legalistic, rules-based practice, while risk controllers relied on the cultural authority of financial economics and the “full fair value” logic. Second, top management’s interactive use of a particular control system sends a signal to external stakeholders about the firm’s internal control style and management priorities. Therefore, the control choice is motivated both by the relevance and the institutional appropriateness of particular controls. As external requirements change and the definition of institutional appropriateness shifts, different organizational control groups get the opportunity to become implicated in interactive control and agenda-setting. In the special case of mutually incompatible control systems, when top managers must trade off relevance for appropriateness (or the other way round), their choice of interactive control will be driven by what they perceive to be the stronger requirement. At MultiBank, institutional appropriateness was the stronger requirement; the lack of it prevented an otherwise informationally relevant risk control system from prevailing as an interactive control system.
从多重控制的角度来看,我调查了一家金融服务公司(MultiBank)的控制崩溃及其后果,重点关注在2002-2003年欧洲保险危机中遭受巨大损失的保险部门(EurInsurance)。该研究跟踪了一套会计和风险控制措施的推广和使用情况,这些措施是为了控制陷入困境的保险部门,并讨论了特定的管理控制系统如何以及为什么会转移到最高管理层的关注点。该研究调查了Simons(1990,1991)的观点,即高层管理人员对公司关键战略不确定性的看法促使他们选择交互使用的控制系统。将纵向实地研究的过程视角与制度逻辑视角相结合,我认为,高层管理人员的控制选择是由功能主义逻辑(相关性)和适当性逻辑(合法性)驱动的,而这两者都是由支持者社会建构的。首先,在各种控制系统的背后,存在着活跃的控制者群体,他们在竞争高管级别的可见性时,进一步提出他们对组织控制问题的解决方案,并参与“认证”(Power, 1992)来支持他们的主张。在MultiBank,会计师利用会计的制度逻辑,将其作为一种法律主义的、基于规则的实践,而风险控制人员则依赖于金融经济学的文化权威和“完全公允价值”逻辑。其次,高层管理人员对特定控制系统的互动使用向外部利益相关者发出了一个关于公司内部控制风格和管理重点的信号。因此,控制选择的动机是特定控制的相关性和制度适当性。随着外部需求的变化和机构适当性定义的变化,不同的组织控制组有机会参与互动控制和议程设置。在相互不兼容的控制系统的特殊情况下,当高层管理人员必须权衡相关性和适当性(或其他方式)时,他们对交互控制的选择将由他们认为更强的需求驱动。在MultiBank,机构适宜性是更强的要求;它的缺乏阻碍了一个信息相关的风险控制系统作为一个交互控制系统的流行。
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引用次数: 3
The Survey of Correlation between Social Capital and Knowledge of Management (The Case Study in National Oil Refining and Distribution Company in Iran (Shiraz)) 社会资本与管理知识的相关性研究(以伊朗设拉子国家炼油配送公司为例)
Pub Date : 2012-05-25 DOI: 10.2139/ssrn.2066918
M. Emami, A. Amini, A. Emami
The aim of current study is to investigate the relationship between social capital & the knowledge management in the Iranian National Oil Refining and Distribution Company. Our model has four dimensions of knowledge management and a model for social capital. The statistical sample of this study was the manager and employees of Iranian's National Oil Refining and Distribution Company. Based on the proposed research model, we have examined the research hypothesis, which consisted of one main hypothesis and five sub hypothesis. At last, the research hypotheses were tested by Spearman Correlation Factor and four hypotheses were accepted and one of them wasn’t accepted and their significance factor was confirmed. Afterward, by the multi-factor data analyze, it was noticed that the independent variables of research has variables of research have multi dimension correlation with km as a dependent variable.
本研究旨在探讨伊朗国家石油炼制与流通公司的社会资本与知识管理之间的关系。我们的模型包含了知识管理的四个维度和社会资本的一个模型。本研究的统计样本为伊朗国家炼油和分销公司的经理和员工。根据提出的研究模型,我们对研究假设进行了检验,研究假设由一个主假设和五个子假设组成。最后,采用Spearman相关因子对研究假设进行检验,得到4个假设被接受,1个假设不被接受,并对其显著性因子进行确认。随后,通过多因素数据分析发现,研究的自变量具有以km为因变量的多维相关性。
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引用次数: 0
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