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81.
公司使用可转换债券筹集外部资金既是作为普通债券的替代,增加转换特性来降低利息率从而保持现金流量,也是转换条款建立“延迟股权”,通过转换,以高于现行股票的价格出售。本文研究发现,公司发行可转换债券是为了减少由于股东和管理者以及股东和债权人之间冲突所引起的代理成本;为了降低由发行普通债券带来的高额预期财务危机成本和普通股发行中经常出现的严重负面公告效应;以及在投资者和管理者对公司面临的风险认识不同时,使其价值不易受公司风险变化的影响。 相似文献
82.
Paul Kabaila 《Revue internationale de statistique》2009,77(3):405-414
It is very common in applied frequentist (\"classical\") statistics to carry out a preliminary statistical (i.e. data-based) model selection by, for example, using preliminary hypothesis tests or minimizing AIC. This is usually followed by the inference of interest, using the same data, based on the assumption that the selected model had been given to us a priori . This assumption is false and it can lead to an inaccurate and misleading inference. We consider the important case that the inference of interest is a confidence region. We review the literature that shows that the resulting confidence regions typically have very poor coverage properties. We also briefly review the closely related literature that describes the coverage properties of prediction intervals after preliminary statistical model selection. A possible motivation for preliminary statistical model selection is a wish to utilize uncertain prior information in the inference of interest. We review the literature in which the aim is to utilize uncertain prior information directly in the construction of confidence regions, without requiring the intermediate step of a preliminary statistical model selection. We also point out this aim as a future direction for research. 相似文献
83.
84.
Summary Economic design of one-sided screening procedures for improving outgoing product quality based on a screening variable is
considered for the case with all parameters unknown. It is assumed that the performance and screening variables are jointly
normally distributed and that costs are incurred by screening inspection, acceptance of an imperfect item, and disposition
of a rejected one. A method for finding optimal cutoff value based on the predictive distribution is presented. 相似文献
85.
The employment interview continues to be a prevalent device used by organizations and a popular topic of study among researchers. In fact, over 100 new articles have been published since Posthuma, Morgeson and Campion's [Posthuma, R. A., Morgeson, F. P., & Campion, M. A. (2002). Beyond employment interview validity: A comprehensive narrative review of recent research and trends over time. Personnel Psychology, 55, 1–81] review that are selectively examined and critiqued. During this timeframe, three main areas that have received considerable research attention are discussed: (1) understanding why “structured” interviews predict, (2) examining the constructs interviews may measure, and (3) investigating the applicant and interview factors that may affect the interview process. Despite advances made in our knowledge of employment interviews, numerous ideas for future research are advanced. Three key areas that deserve immediate research attention are: (1) establishing a common model and measurement of interview structure, (2) focusing on what constructs could be or are best measured, and (3) formulating consistent definitions, labeling and measurement of applicant factors. In this way, employment interview research can be advanced. 相似文献
86.
Data driven test procedure for detection of change is introduced and its properties are studied. The new solution is max-type statistic related to data-driven rank tests for two-sample subproblems. Simulations show that the new test possesses high and stable power. The test is consistent at essentially any alternative. Asymptotic null distribution of the test is derived. The work of the first two authors has been partially supported by the grants GAČR 201/06/0186 and MSM 02160839. 相似文献
87.
普惠型医疗保险发展:实践困境与优化方向 总被引：2，自引：0，他引：2
近年来,普惠型医疗保险成为多层次医疗保障体系发展的一大热点。文章首先介绍了中国普惠型医疗保险的发展现状及主要特点,其次通过对国内部分保险公司线上及线下调研,发现当前普惠型医疗保险发展面临配套法律法规有待健全、市场认可度普遍偏低、可持续经营能力不强、保险效果低水平重复、相关主体联动不足等困境。进一步分析美国、英国、德国、新加坡相关经验,提出具体的优化路径:以优化顶层设计为立足点,提高保险规制水平;以强化市场环境建设为切入点,提升市场认可度;以优化运行模式为突破点,激发保险生命力;以设计差异化产品为关键点,强化保险增补性;以建立联通机制为动力点,提高相关主体协同度。 相似文献
88.
Prior studies suggest that analysts under‐react to past information (Klein, 1990 ; Abarbanell and Bernard, 1992 ; Easterwood and Nutt, 1999 ). We examine whether evidence interpreted as analyst under‐reaction to negative news can be attributed to analyst self‐selection. Analyst self‐selection arises when analysts' information production efforts are focused toward stocks that analysts expect to perform well. Using a large sample of firms for the period of 1983–2004, we find evidence suggesting that self‐selection is responsible, at least in part, for analyst under‐reaction to past negative information about the firm's performance. 相似文献
89.
Salim Lahmiri 《International Journal of Intelligent Systems in Accounting, Finance & Management》2016,23(4):265-275
The aim of this paper is to compare several predictive models that combine features selection techniques with data mining classifiers in the context of credit risk assessment in terms of accuracy, sensitivity and specificity statistics. The t‐statistic, Battacharrayia statistic, the area between the receiver operating characteristic, Wilcoxon statistic, relative entropy, and genetic algorithms were used for the features selection task. The selected features are used to train the support vector machine (SVM) classifier, backpropagation neural network, radial basis function neural network, linear discriminant analysis and naive Bayes classifier. Results from three datasets using a 10‐fold cross‐validation technique showed that the SVM provides the best accuracy under all features selections techniques adopted in the study for all three datasets. Therefore, the SVM is an attractive classifier to be used in real applications for bankruptcy prediction in corporate finance and financial risk management in financial institutions. In addition, we found that our best results are superior to earlier studies on the same datasets. 相似文献
90.
The growth of alliances has generated considerable interest in this topic among both academics and practitioners. While multiple factors may affect alliance success, partner selection emerges as one of the most influential. Previous studies on alliances present general models that assume the factors (e.g., trust, commitment, complementarity, financial payoff) that drive partner attractiveness and, in turn, the likelihood of selection, are consistent across varying alliance projects and situations. In contrast, the present study proposes a contingency approach grounded in management control theory that suggests the criteria managers use in choosing alliance partners will vary by alliance project type. Specifically, it introduces a framework that addresses when and why managers select partners with certain, specific characteristics. The results of the present study strongly support hypotheses that the critical criteria for assessing alliance partner attractiveness and selection vary depending on the differential levels of process manageability and outcome interpretability inherent in a strategic alliance. Implications for theory and practice are discussed. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献