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81.
Plagiarism strikes at the heart of academe, eroding the fundamental value of academic research. Recent evidence suggests that acts of plagiarism and awareness of these acts are on the rise in academia. To address this issue, a vein of research has emerged in recent years exploring plagiarism as an area of academic inquiry. In this new academic subject, case studies and analysis have been one of the most influential methodologies employed. Case studies provide a venue where acts of plagiarism can be discussed and analyzed in a constructive manner, and that is the primary purpose of this article. Unlike previous studies, however, we focus on the role of the publisher, a key player in dealing with acts of plagiarism, but one who has received little attention in the academic literature. Specifically, we examine how an academic publisher addressed allegations of plagiarism and how the publisher’s decision-making affected the outcome. We analyze the case by applying the guidelines from different frameworks and ethical theory and develop recommendations from the lessons evidenced, the second main objective of our article. This analysis advances the dialog on academic plagiarism by exploring the role of the publisher from a deontological perspective of ethical absolutism. 相似文献
82.
Expressions for marginal distribution functions of sequential order statistics and generalized order statistics are presented without any restrictions imposed on the model parameters. The results are related to the relevation transform, to the distribution of the product of Beta distributed random variables, and to Meijers G-functions. Some selected applications in the areas of moments, conditional distributions, recurrence relations, and reliability properties are shown.
Key words:Order statistics; Generalized order statistics; Sequential order statistics; Record values; Distribution theory; Meijers G-function; Recurrence relations; Reliability properties. 相似文献
83.
84.
In Joon Kim In-Seok Baek Jaesun Noh Sol Kim 《Review of Quantitative Finance and Accounting》2007,29(1):69-110
This paper investigates the role of stochastic volatility and return jumps in reproducing the volatility dynamics and the
shape characteristics of the Korean Composite Stock Price Index (KOSPI) 200 returns distribution. Using efficient method of
moments and reprojection analysis, we find that stochastic volatility models, both with and without return jumps, capture
return dynamics surprisingly well. The stochastic volatility model without return jumps, however, cannot fully reproduce the
conditional kurtosis implied by the data. Return jumps successfully complement this gap. We also find that return jumps are
essential in capturing the volatility smirk effects observed in short-term options.
相似文献
Sol KimEmail: |
85.
In this paper, a kind of multiple attribute group decision making problem is studied, where there is no original information about the weights of importance of the attributes and the decision makers (DMs), and the attribute values are given in the form of interval-valued intuitionistic fuzzy numbers (IVIFNs). To solve this problem, a new method is proposed based on utility theory. In the proposed method, the weights of importance of the DMs and the attributes are all determined by using the intuitionistic indexes of related IVIFNs. And then, the alternatives are compared by using their composite interval indexes which are generated based on utility theory. Finally, two numerical examples are proposed to demonstrate the effectiveness of the proposed method. 相似文献
86.
Yeonsoo Kim 《Journal of Business Ethics》2017,143(2):307-322
This study explores social enterprises’ strategies for addressing mission drift. Relying on an inductive comparative case study of two Italian social enterprises, we show how stakeholder engagement combined with social accounting can successfully support a social venture to re-balance its positioning between wealth generation and social value creation. Indeed, stakeholder engagement helps the internal actors of a social enterprise to rationalize and embody pro-social values previously abandoned, while social accounting reinforces this embodiment process by showing the reintroduced social commitment of the social enterprise to external audiences. Conversely, strategies focused only on social accounting and without significant engagement of external stakeholders prove to be unsuccessful in counterbalancing mission drift because they fail to activate the necessary process of internal re-introduction and operationalization of pro-social values and objectives. 相似文献
87.
Franz Wirl 《Environmental and Resource Economics》2007,36(3):313-340
This paper extends the strategic interactions between producers of fossil fuels concerned about their profits and a taxing government concerned about the consumers’ welfare for uncertainty: global warming follows an Itô -process. Stochasticity requires to differentiate between reversible and irreversible emissions in contrast to the deterministic version. The unconstrained (= reversible) case allows for a closed form solution but not the more realistic and constrained case. Nevertheless interesting analytical properties (e.g. about when to stop emissions, implicit conservation due to monopolistic supply) are derived and complemented by a numerical example. 相似文献
88.
We examine hedge fund risk management practices and their association with left-tail risk during the 2008 financial crisis. Consistent with risk management practices reducing left-tail risk, funds in our sample that use formal risk models performed significantly better in the extreme down months of 2008. We find no evidence that having either position limits or a dedicated head of risk management is associated with reduced left-tail risk. Funds employing value at risk models had more accurate expectations of how they would perform in a short-term equity bear market. 相似文献
89.
Ahmad Ismail 《Review of Quantitative Finance and Accounting》2010,35(4):411-429
The study examines whether prestigious investment banks deliver quality gains to their clients in a sample of 6,379 US M&A
deals. It finds that acquirers advised by tier-one advisors lost more than $42 billion, whereas those advised by tier-two
advisors gained $42 billion, whereas those advised by tier-two
advisors gained 13.5 billion at the merger announcement. The results were mainly driven by the large loss deals advised by
tier-one advisors. The evidence indicates that investment banks might have different incentives when they advise on large
deals vs. small deals. The results imply that market share based reputation league tables, could be misleading and therefore,
the selection of investment banks should be based on their track record in generating gains to their clients. The findings
were consistent with the superior deal hypothesis as tier-one target advisors outperformed tier-two advisors and the existence
of a prestigious advisor on at least one side of an M&A transaction resulted in higher wealth gains to the combined entity.
Target advisors were able to extract more wealth gains for their clients, which led to higher combined gains at the expense
of the acquirer. 相似文献
90.
Erwin Diewert 《Journal of Productivity Analysis》2009,32(1):1-19
The paper considers how to measure capital in a model where technical progress is embodied in new units of capital. This embodiment
model also assumes that once new units of capital are installed, it cannot be “unbolted” and sold on the second hand market.
A significant difference between this Solow–Harper model and the traditional capital services model due to Jorgenson and his
coworkers is that rising real wage rates will generally induce early retirement of assets; i.e., this model can provide an
explanation for obsolescence. The paper studies how to aggregate over vintages and how to measure depreciation in the context
of this embodiment model. These problems are more complicated than the corresponding problems in the traditional capital services
model because the age of retirement of an asset is endogenous in the embodiment model. The paper uses duality theory to simplify
the exposition.
相似文献
Erwin DiewertEmail: |