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排序方式: 共有173条查询结果,搜索用时 15 毫秒
1.
Adam S. Hayes 《Applied economics letters》2019,26(7):554-560
This study back-tests a marginal cost of production model proposed to value the digital currency Bitcoin. Results from both conventional regression and vector autoregression (VAR) models show that the marginal cost of production plays an important role in explaining Bitcoin prices, challenging recent allegations that Bitcoins are essentially worthless. Even with markets pricing Bitcoin in the thousands of dollars each, the valuation model seems robust. The data show that a price bubble that began in the Fall of 2017 resolved itself in early 2018, converging with the marginal cost model. This suggests that while bubbles may appear in the Bitcoin market, prices will tend to this bound and not collapse to zero. 相似文献
2.
Jan Hayes Sarah Maslen Christina Scott-Young Janice Wong 《Journal of Risk Research》2018,21(9):1131-1145
AbstractBased on a survey of Australian engineers (n = 275) this paper examines the impact of personal liability considerations on engineering decision-making. Almost all respondents who make high-stakes decisions saw questions of liability as having both positive (90%) and negative (87%) impacts. Our analysis shows that awareness of personal liability acts to focus the attention of many engineers on the moral dimension of their work. However, it also encourages more expensive decision-making, inhibition of innovation and professional paralysis. We argue that while personal legal liability is a legitimate way to focus engineers’ attention on the potential impact of their work, a problem arises when decision-makers are held responsible for disasters over which they had little control. The focus then shifts to ‘defensive engineering’ practices that are aimed at limiting individual liability rather than disaster prevention. Legal processes that are seen to unfairly allocate blame do not encourage practices that support future disaster prevention. 相似文献
3.
J.P. Hayes 《The World Economy》1988,11(2):267-280
4.
Normativa de empleo,teoría de juegos y representación laboral insuficiente en las economías liberales 下载免费PDF全文
Tony DOBBINS Tony DUNDON Niall CULLINANE Eugene HICKLAND Jimmy DONAGHEY 《Revista Internacional del Trabajo》2017,136(3-4):411-439
Se analiza el impacto de la normativa europea de información y consulta en los niveles de representación de los trabajadores en dos economías liberales (Irlanda y Reino Unido) a partir de tres postulados teóricos y del dilema del prisionero de la teoría de juegos. Sobre la base de datos cualitativos de 16 empresas recabados mediante entrevistas, los autores evalúan los postulados y explican por qué las normas nacionales de transposición son ineficaces para promover la cooperación en beneficio mutuo en economías liberales, aportando así un modelo teórico a las investigaciones previas sobre el tema, fundamentalmente empíricas. 相似文献
5.
Samuel Hayes 《21世纪商业评论》2006,(3):16-17
授人以渔,非授人以鱼早在哈佛商学院刚刚创建初期,还是一个很小的学院时,我们就开始在商学院里采用法学院所用的案例教学的方法,也是从那时候开始,案例教学慢慢发展成为商学院教育的主流方法。在哈佛商学院的案例课程里,教授们都要求学生在课前认真研读布置的案例,并进行分 相似文献
6.
Our purpose is to investigate the ability of different parametric forms to ‘correctly’ estimate consumer demands based on distance functions using Monte Carlo methods. Our approach combines economic theory, econometrics and quadratic approximation. We begin by deriving parameterizations for transformed quadratic functions which are linear in parameters and characterized by either homogeneity or which satisfy the translation property. Homogeneity is typical of Shephard distance functions and expenditure functions, whereas translation is characteristic of benefit/shortage or directional distance functions. The functional forms which satisfy these conditions and include both first- and second-order terms are the translog and quadratic forms, respectively. We then derive a primal characterization which is homogeneous and parameterized as translog and a dual model which satisfies the translation property and is specified as quadratic. We assess functional form performance by focusing on empirical violations of the regularity conditions. Our analysis corroborates results from earlier Monte Carlo studies on the production side suggesting that the quadratic form more closely approximates the ‘true’ technology or in our context consumer preferences than the translog. 相似文献
7.
Recent debate on the reform of the international financial architecture has highlighted the potentially important role of the official sector in crisis management. We examine how such public intervention in sovereign debt crises affects efficiency, ex ante and ex post. Our results shed light on the scale of capital inflows and the implications for debtor country output of such a regime. The efficacy of measures such as officially sanctioned stays on creditor litigation depend critically on the quality of public sector surveillance and the size of the costs of sovereign debt crises. 相似文献
8.
This paper adopts a communities of practice approach to examine how the introduction of a groupware application in a UK pharmaceuticals company enabled and constrained knowledge working. We will refine the analysis by distinguishing between participation that is undertaken in what is referred to as political enclaves, and participation that takes place in safe enclaves. We will discuss how the deliberate intervention of some employees moderated some of politicising, and facilitated increased participation. The paper concludes by suggesting ways in which existing theoretical conceptualisations of information systems and knowledge work may be expanded to consider socio-political issues in more depth. 相似文献
9.
This study assesses the impact of the growth of satellite television in the UK on terrestrial channels. The paper outlines the debate concerning satellite television's potential role in globalisation and pan-European marketing processes, provides background information on the development of satellite television in the UK, and gives an insight into the structure of the main UK satellite service, British Sky Broadcasting (BSkyB). An exploratory study into the advertising content of terrestrial commercial (TTV) and satellite television (BSkyB) is discussed and findings are presented. Differences and similarities in advertising content between terrestrial and satellite, in particular the extent of global, national and regional advertising on both channels, are indicated. 相似文献
10.