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Henri Teittinen Jukka Pellinen Marko Järvenpää 《International Journal of Accounting Information Systems》2013,14(4):278-296
ERP systems have fundamentally re-shaped the way business data is collected, stored, disseminated and used throughout the world. However, the existing research in accounting has provided only relatively few empirical findings on the implications for management control when companies implement ERP systems as the technological platform. Especially scarce are the findings concerning the production phase, after implementation, when the information processes, related work practices and the new information contents can be seen as established. In this paper we explored and theorized the benefits, challenges and problems for management control when an ERP system is in use, four years after the implementation. Our findings also illustrate why and under what circumstances these challenges and benefits may exist. For a holistic view of the organization our findings, based on a qualitative case study, are constructed from the viewpoints of people at different levels and functions of the organization. Top management expected a new strategic control system, but due to the many challenges it ended up with merely financial accounting based control. At the operational level, serious challenges lead to inadequate usage of the ERP system. Management control produces the financial basic data and must contend with many practical problems caused by ERP implementation. 相似文献
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rtomir Rozman Majda Poto
nik Karmen Paek Andreja Borec Darja Majkovi
Marko Bohanec 《Tourism Management》2009,30(5):629-637
Farm tourism is a significant means of supplementing farmers' incomes. This paper presents a methodology for ranking tourist farms by using a multi-criteria model based on the qualitative multi-criteria modeling methodology, DEX, to assess service quality. The software tool DEXi was used to achieve this end. The model was then applied to seven tourist farms with data derived from questionnaires completed by tourist farm operators and guests. The results are shown as service quality assessments for individual farms. The potential of the model for assessing the farms is demonstrated with the aim of providing a comprehensive explanation and justification of the assessment technique. It also indicates potential improvements that farms can make through “what-if” analysis and visualization. Despite limitations, such as use of qualitative data only, the approach is proposed as being both appropriate and advantageous when compared with other means of ranking enterprises. 相似文献
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We consider the general problem of finding fair constrained resource allocations. As a criterion for fairness we propose an
inequality index, termed “fairness ratio,” the maximization of which produces Lorenz-undominated, Pareto-optimal allocations.
The fairness ratio does not depend on the choice of any particular social welfare function, and hence it can be used for an
a priori evaluation of any given feasible resource allocation. The fairness ratio for an allocation provides a bound on the
discrepancy between this allocation and any other feasible allocation with respect to a large class of social welfare functions.
We provide a simple representation of the fairness ratio as well as a general method that can be used to directly determine
optimal fair allocations. For general convex environments, we provide a fundamental lower bound for the optimal fairness ratio
and show that as the population size increases, the optimal fairness ratio decreases at most logarithmically in what we call
the “inhomogeneity” of the problem. Our method yields a unique and “balanced” fair optimum for an important class of problems
with linear budget constraints. 相似文献
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Carlene E. Weber 《The Financial Review》1996,31(3):585-602
Previous empirical evidence suggests that stock return volatility expectations change over time, but the existing models of time-varying variance lack a theoretical structure that is rigorously linked to the efficient markets dividend discount model. This paper develops and tests such a model. The conditional forecast variance of the return on the stock market portfolio is expressed as a linear combination of the adjusted conditional forecast variance of the interest rate and the dividend growth rate. An empirical test using the implied variance of the S&P 100 index option provides evidence that supports the model's predictions. 相似文献