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1.
A procedure to test hypotheses about the population variance of a fuzzy random variable is analyzed. The procedure is based on the theory of UH-statistics. The variance is defined in terms of a general metric to quantify the variability of the fuzzy values about its (fuzzy) mean. An asymptotic one-sample test in a wide setting is developed and a bootstrap test, which is more suitable for small and moderate sample sizes, is also studied. Moreover, the power function of the asymptotic procedure through local alternatives is analyzed. Some simulations showing the empirical behavior and consistency of both tests are carried out. Finally, some illustrative examples of the practical application of the proposed tests are presented.  相似文献   

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This paper compares the stock return distribution models of mixture normal distribution, mixed diffusion-jump and GARCH models based on the data of Chinese stock market. The Schwarz criterion is also used. We find all these models can capture the features of stock returns partly. EGARCH model is the best fitting to daily return and stable during different period. When the weekly and monthly returns are tested, the differences of the models' fitness become unobvious and unstable.  相似文献   

3.
The assessment mode of the CPA audit independence risk based on the Rough Set Theory is a risk assessment method and using the Analytical Hierarchy Process, whose aim is to solve the bid management in the process of the Financial Statement Insurance. Firstly, according to the general instance of the accountant office, the experts grade the risk elements to establish the decision-making table; secondly, construct the judgment matrix using the attribution dependence degree of Variable Precision Rough Set to obtain relative importance, and further get the general importance for all of risk elements; Finally, establish the general assessment mode of the audit independence risk.  相似文献   

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This paper summarizes the current financial monitoring theory and the design of index system, analyzes the possible monitoring indexes relative to stakeholders to achieve their own interests, and then categorizes these indexes into five aspects: the finance, the customer, the process, the employee and the society. After a deep analysis of these indexes, we use the Analytic Hierarchy Process to conform the weight of every index, subsequently build up an effective financial monitoring index system.  相似文献   

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The competition of Multinational Corporation is getting more and more intense with the economy globalization, requiring companies to standardize operations to stay competitive. Shared Services is an effective way of keeping costs down and improving efficiency by moving certain functions to one central location. Financial Shared Services is one of the typical representatives. In this essay, the advantages and disadvantages of Financial Shared Services will be discussed on the case of Motorola and explored with some possible solutions.  相似文献   

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I Kodak ,the winner or loser ?Kodak,as a worldleader in Rochester , N.Y.,is a company mainly provi-ding products and services relatedto photographic ,graphic communications andhealthcare industries .Its products are marketed by global subsidiary companiesto consumers in more than 150 countries . With excellent performance in busi-ness operation, Kodakis committedto helping people better use meaningful i m-ages andinformationin their life and work.But recently,as the competitionindigital mark…  相似文献   

7.
In traditional analysis, enterprises' performance evaluation largely depends on profits indices, which results in the public companies' strong pursuit of accounting profits and neglect of net cash flow. It is of great significance to study this phenomenon in public companies for it can help to evaluate their profitability correctly. By making an empirical research on the status quo of the medical public companies' accounting profits, net cash flow, receivable and prepaid items, it is found that the phenomenon that the current accounting profits and net cash flow are inconsistent universally exists in the public companies; the current growth rates of accounts receivable, notes receivable, other accounts receivable and accounts prepaid in the companies which the phenomenon exists in are higher than those in other companies and the industrial average, especially for the latter two items; this phenomenon in economically developed areas is more obvious than in other areas. How to avoid the contradiction of accounting profits and net cash flow in the public companies? Firstly, the credit risk awareness and management should be strengthened. Secondly, cash budget management should be enhanced. Finally, the index system of evaluation of the public companies' operating performance should be improved.  相似文献   

8.
Under the existed system, the capital structure is the basis of the corporate governance, the structure of the corporate governance is the reflection of the capital structure. The choice of the capital structure decides the level of the corporate governance to a great degree. This paper discusses the governance effect of Chinese public corporation in the view of capital structure. At last, the author suggests that the government should change the state of state-owned stock which takes a great proportion, make the state-owned stocks and corporation stocks enter and circulate in the market, develop investment banks, promote the stockholder's rights to circulate and recombine, enhance the supervision and the management of the stock markets, perfect the mechanism of the market's operation, set up the mechanism of the way to protect to pay back the debt, perfect the system of bankruptcy and develop the way of bond-financing, offset the drawbacks of the indirect-financing among banks and so on. All of the advice was given to perfect the public company's capital structure and improve the efficiency of the corporate governance.  相似文献   

9.
This paper is based on the samples of listed manufacturing companies of China, taking the financial performance as criterion, and then does research on the firm performance with different internal auditing modes, using Cross-sectional data to analyze the distribution of internal auditing modes and the characteristics of the firm performance. The conclusion is that setting up internal auditing is good for the development of companies, but the function of internal auditing has not been widelv fulfilled.  相似文献   

10.
Based on the samples of mandatory accounting changes (MAC) and voluntary accounting changes (VAC) of our country in 1999 and 2001, this research explores the relevancy between MAC and VAC and its specific performance. The results of this research are shown as follows: (1) The timing relationship exists between MAC and VAC, and the frequency of VAC rises significantly in MAC year; (2) The relevancy exists in the earnings effects between MAC and VAC, and the combined effects which MAC and VAC have on earnings are in direct correlation with the earnings effects of MAC in the same year; (3) The supervisory factors of the securities market together with MAC influence the direction of VAC. Different from Pincus and Wasley's conclusion, when MAC is used to decrease profits, the part of VAC in our country counterbalances the effots of MAC; the listed companies with a special purpose will be against the direction of MAC and apply to VAC with a particular purpose.  相似文献   

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Evidence of the importance of urban agglomeration and the offsetting effects of congestion are provided in a number of studies of productivity and wages. Little attention has been paid to this evidence in the economic growth literature, where the recent focus is on technological change. We extend the idea of agglomeration and congestion effects to the area of innovation by empirically looking for a nonlinear link between population density and patent activity. A panel data set consisting of observations on 302 USA metropolitan statistical areas (MSAs) over a 10-year period from 1990 to 1999 is utilized. Following the patent and R&D literature, models that account for the discreet nature of the dependent variable are employed. Strong evidence is found that agglomeration and congestion are important in explaining the vast differences in patent rates across US cities. The most important reason cities continue to exist, given the dramatic drop in transportation costs for physical goods over the last century, is probably related to the forces of agglomeration as they apply to knowledge spillovers. Therefore, the empirical investigation proposed here is an important part of understanding the viability of urban areas in the future.  相似文献   

13.
We study how cross‐country variance in institutions that aim to address core agency problems influences consequential strategic decisions of firms around the world. Scholars frequently argue that the interests of minority shareholders are threatened by merger and acquisitions (M&As) due to principal‐agency problems. Rather than acting in shareholders’ best interests, managers potentially act as viceroys, using M&As to cushion themselves from risk and extract more pay. Yet equally salient is the issue of principal‐principal agency, where controlling shareholders can behave as emperors who use M&As to siphon off assets and profits, and appropriate wealth of shareholders with fewer control rights. Taking an institution‐based perspective on these ‘viceroy’ and ‘emperor’ problems, we conjecture that institutions aimed to address these agency problems can generate the desired outcome regarding M&A prevalence, but may also produce unintentional negative consequences for shareholder value as a side‐effect. Empirical evidence covering M&As from 73 countries supports our hypotheses.  相似文献   

14.
The aim of this study is to examine the effects of family involvement and altruism on agency costs of equity and debt, as well on the performance of small family businesses. To achieve this objective, the authors reviewed the literature on family business. Drawing from agency theory and stewardship theory, the authors also proposed a research model that highlights the links among the variables. In so doing, this paper makes some contributions to the literature in three ways. Firstly, it takes an integrative framework that may help to explain behaviors oriented towards maximizing potential performance within a context in which pro-organizational attitudes co-exist with self-serving motivations. Secondly, it advances the understanding of corporate governance mechanisms in small family businesses, and finally, it deepens the discussion of prior research by advancing a set of propositions based on two theoretical approaches. Thus, the authors believe that a systematic comparison of different contexts provides new insights into small family business governance. The implications and directions for future research are in the last section.  相似文献   

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This paper aims to find evidence for the improvements on the present earnings forecast models through analyzing the correlation among financial ratios, auditor opinion of listed companies and their future earnings. This paper uses two statistical regression methods including Logistic model and Linear model to examine the inner interaction between financial ratios and future earnings from qualitative and quantitative perspectives respectively. Empirical tests find that financial ratios, especially ROE, can help to predict future earnings. Then we add auditor opinion variable into Logistic model to test whether going concern opinion in the auditor reports can be helpful for earnings forecast. Result shows the degree of optimistic statement of going concern opinion is significantly correlated with future earnings but with the disturbance of earnings management.  相似文献   

17.
This article investigates the degree of intergenerational transmission of education for individuals from the National Longitudinal Survey of Youth 1979. Rather than identifying the causal effect of parental education via instrumental variables we exploit the feature of the transmission mechanism responsible for its endogeneity. More explicitly, we assume the intergenerational transfer of unobserved ability is invariant to the economic environment. This, combined with the heteroskedasticity resulting from the interaction of unobserved ability with socioeconomic factors, identifies the causal effect. We conclude that the observed intergenerational educational correlation reflects both a causal parental educational effect and a transfer of unobserved ability.  相似文献   

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Management research is increasingly using fiction as an insightful way to analyze complex organizational dynamics. Focusing on user appropriation of Knowledge Management Systems, we describe how we used the popular Astérix, a well-known French cartoon to better understand KMS appropriation. We came to use this approach in an action research project in a large French construction firm initially designed to help Chief Knowledge Officers address KMS non-use. After our first findings showed paradoxical cultural issues, and based on the idea that culture is central to sensemaking and appropriation, we used the notion of the cultural metaphor to help better understand the cultural aspects associated with KMS appropriation. These results contribute knowledge in three different areas. First, we underline the role of cultural metaphors in information systems appropriation. Second, we enrich the literature on the role of fiction in management by illustrating the role of cultural metaphors. Third, we report on how this can be used in an action research project to help better understand KMS appropriation issues, which has the potential of leading to practical managerial action.  相似文献   

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