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61.
现代化的生产活动中,技术更新占据着非常重要的地位,利用最新设备和技术去更新现有的陈旧设备和技术是工矿企业不断提高生产效率的必经途径;但是,对于只是短期使用或者本身将面临重大革新的设备和技术,在引进时就需要在租赁与购买之间做出决策.在这个过程中最难以解决的一个问题就是:如何准确地比较租赁成本与购买成本,以及选择其中成本较少、收益较大的方案.利用技术经济学中的设备经济理论,并将其与企业实际情况相结合,就可以提供一种很好的解决方法. 相似文献
62.
Block Share Purchases and Corporate Performance 总被引:9,自引:1,他引:8
This paper investigates the causes and consequences of activist block share purchases in the 1980s. We find that activist investors were most likely to purchase large blocks of shares in highly diversified firms with poor profitability. Activists were not less likely to purchase blocks in firms with shark repellents and employee stock ownership plans. Activist block purchases were followed by increases in asset divestitures, decreases in mergers and acquisitions, and abnormal share price appreciation. Industry-adjusted operating profitability also rose. This evidence supports the view that the market for partial corporate control plays an important role in limiting agency costs in U.S. corporations. 相似文献
63.
Tim R. Coltman Timothy M. Devinney Byron W. Keating 《Journal of Business Logistics》2011,32(2):139-152
This study describes a simple, theoretically based methodology to analyze the nature of customer demand for third‐party logistics provider service components. The method overcomes limitations in prior studies and enables us to examine the relative importance of product and service attributes as they pertain to the choice of third‐party logistics providers. Two distinct types of customers populate our data: those professing operational attributes and those seeking relational attributes. The theoretical and practical implications are that improved supply chain models can be developed when separate demand structures are taken into account. 相似文献
64.
Tim Friehe 《Journal of Economics》2009,97(2):165-183
The severity of the sanction for a given offense is often determined by the offense history of the offender. We establish
that this policy can be welfare-maximizing if individuals are imperfectly informed about the magnitude of the sanction. Imperfect
information distorts individuals’ perception of the expected sanction of the first offense. Once detected, individuals learn
about the sanction applicable to their act, making this argument less relevant for consecutive offenses.
相似文献
65.
66.
Building on realized variance and bipower variation measures constructed from high-frequency financial prices, we propose a simple reduced form framework for effectively incorporating intraday data into the modeling of daily return volatility. We decompose the total daily return variability into the continuous sample path variance, the variation arising from discontinuous jumps that occur during the trading day, as well as the overnight return variance. Our empirical results, based on long samples of high-frequency equity and bond futures returns, suggest that the dynamic dependencies in the daily continuous sample path variability are well described by an approximate long-memory HAR–GARCH model, while the overnight returns may be modeled by an augmented GARCH type structure. The dynamic dependencies in the non-parametrically identified significant jumps appear to be well described by the combination of an ACH model for the time-varying jump intensities coupled with a relatively simple log-linear structure for the jump sizes. Finally, we discuss how the resulting reduced form model structure for each of the three components may be used in the construction of out-of-sample forecasts for the total return volatility. 相似文献
67.
Tim Booth 《Australian economic history review》1999,39(1):29-51
This paper addresses the unresolved debate about the timing of economic disengagement between Australia and Great Britain. During Chifley's administration international economic collaboration between Australia and Britain was close, Australia tending to identify its interests with those of the UK and the sterling area. Yet collaboration never stretched to acceptance by Australia of traditional forms of manufacturer–primary producer complementarity; this played no part in Canberra's postwar planning and priority given to industrialization led to the relative neglect of rural industries, which, together with the rapidly growing demands of its own population, reduced export surpluses and contributed to Australia's poor record as a food supplier. Buoyant export prices, especially for wool, combined with capital inflows from the UK to stimulate import demands. Because of dollar shortages most of these had to be sourced from Britain. From 1948 the UK not only expanded exports dramatically but was a major source of migrants and capital. Yet British industrial capacity in particular proved unequal to the task of meeting Australian needs. Imperial self-insufficiency again stood revealed, encouraging Menzies to look beyond the sterling area to support Australia's rapid development. 相似文献
68.
Tim Strangleman 《International journal of urban and regional research》2001,25(2):253-267
This article engages with the theme of the symposium by examining the role and meaning of networks in the context of a former coal‐mining region in the UK. Mining communities have historically been noted by sociologists and historians for their strong social ties and extended families as well as for forming the bedrock of discussion of class and place. In the wake of the closure programme of the 1980s and early 1990s, such identities have been fundamentally challenged. The notion of networks is explored in four distinct but ultimately interrelated senses: occupational/work networks; networks around place; networks of class relations; and, finally, networks as relationships of family, kin and generation. Material presented here is based on research that investigated four former coalfield communities in the UK after closure, focusing on a former pit village in the North East of England. It begins with a discussion of community and the coalfield within sociological and historical literatures. It then proceeds to discuss the changing nature of community and social networks post‐coal by focusing on the experience of two separate cohorts of former workers. It concludes by arguing for a historical understanding of the patterning of networks. Cet article s’inscrit dans le th? me du symposium en étudiant le rôle et la signification des réseaux dans le cadre d’une ancienne région miniàre anglaise. De tous temps, sociologues et historiens ont distingué les communautés miniàres, celles‐ci présentant de solides liens sociaux et des familles étendues, tout en étant à la base des débats de classes et de lieux. À la suite du plan de fermeture des années 1980 et du début des années 1990, ces identités ont été profondément remises en cause. La notion de réseaux est examinée dans quatre sens distincts, quoique liés en définitive: réseaux professionnels, réseaux autour du lieu, réseaux liés à la classe, et réseaux de relations de famille, parenté et génération. Les éléments présentés sont issues de recherches sur quatre communautés d’un ancien bassin charbonnier anglais apràs la fermeture des mines, et plus particuliàrement sur un village du nord‐est de l’Angleterre. Apràs avoir abordé la communauté et le bassin charbonnier au travers de documents sociologiques et historiques, l’article s’intéresse à la nature évolutive des réseaux de la communauté et des réseaux sociaux apràs l’àre du charbon, en s’attachant à l’expérience de deux groupes distincts d’anciens ouvriers. Il conclut en défendant une appréhension historique de la modélisation des réseaux. 相似文献
69.
Oswald Jones Tim Edwards Martin Beckinsale 《Technology Analysis & Strategic Management》2000,12(2):161-177
Most innovation studies focus on the activities or characteristics of individuals (agency) or on organizational attributes such as size and formalization (structure). In attempting to reconcile this agency-structure dichotomy we draw on structuration theory to examine the innovation process in detail. Structural properties (signification, domination and legitimation) are constantly reproduced from social interaction (communication, power and sanctions) by means of the modalities (interpretative schemes, facilities and norms) drawn on by knowledgeable, reflexive actors. This framework is utilized to examine the case of a mature manufacturing company in which managers and engineers were attempting to access new technologies. The data were acquired by means of a 6-year, on-going study which began in 1992 and which we suggest is essential for a thorough understanding of the innovation process. 相似文献
70.
The Moderating Effect of Individuals' Perceptions of Ethical Work Climate on Ethical Judgments and Behavioral Intentions 总被引:11,自引:0,他引:11
Dimensions of the ethical work climate, as conceptualized by Victor and Cullen (1988), are potentially important influences on individual ethical decision-making in the organizational context. The present study examined the direct and indirect effects of individuals' perceptions of work climate on their ethical judgments and behavioral intentions regarding an ethical dilemma. A national sample of marketers was surveyed in a scenario-based research study. The results indicated that, although perceived climate dimensions did not have a direct effect on behavioral intentions, there were significant moderating effects. Climates perceived as emphasizing social responsibility and rules/codes moderated the individual ethical judgment-behavioral intentions relationship such that individuals were less likely to say that they would engage in a questionable selling practice even when they themselves did not believe the practice to be unethical. Respondents were somewhat more likely to form intentions consistent with their judgment that the questionable practice was morally acceptable when the ethical climate was characterized by an emphasis on team/friendship. 相似文献