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1.
Marjorie Chan 《Journal of Business Ethics》2002,36(4):315-336
Adapted from Chan's (2000) model depicting success of litigation, this paper argues that with the application of various legislation, health maintenance organizations' (HMOs') violations of service fairness to each group: enrollees, physicians, and hospitals give rise to each group's lawsuits against the HMOs. Various authors (Bowen et al., 1999; Seiders and Berry, 1998) indicate that justice concepts such as distributive, procedural, and interactional justice can be applied to the area of service fairness. The violation of these underlying justice principles with HMOs' service unfairness to enrollees, physicians, and hospitals is examined. A general synopsis of the ethical issues in the managed care industry is provided. The various lawsuits launched by each group: enrollees, physicians, and hospitals together with the key statutes used are discussed. This paper also highlights the provisions and ramifications of the 11 April 2000 landmark agreement that Aetna made with Texas Attorney General John Cornyn to settle the 1998 lawsuit brought against the company. Lastly, the current ethical issues in the managed care industry are further discussed. The value of this paper can be adapted to the study of organizations' service fairness violations in other industries or in the educational, governmental, and not-for-profit sectors both nationally and internationally. 相似文献
2.
Price-volume relation in stocks: A multiple time series analysis on the Singapore market 总被引:1,自引:1,他引:0
We examine the price-volume relation in stocks using the multiple time series approach due to Tiao and Box (1981). This approach has the advantage of treating price and volume jointly and symmetrically (without enforcing the roles of input and output). It is free of the simultaneity bias in regression analysis and the unidirectional dynamics imposed by transfer function models. Empirical results show that there is implicit positive correlation between price and volume through their residuals. However, the results for the explicit lead and lag relations are mixed. The technical analysts' adage that volume often leads the trend of price is not supported. Nonetheless, the implicit relationship between price and volume confirms the usefulness of incorporating volume data to forecast future return. Our analysis shows that the multiple time series models outperform the univariate models in post-sample forecasts. 相似文献
3.
This paper employed eleven data series which consist of stocks, bonds, bills, equity premiums, term premiums, and various default premiums to investigate whether January seasonality reported in existing literature is robust across different states of the economy as this has important trading implications. For the periods 1926–1990, small stocks, small stock premiums, low grade bonds, and default premiums (spread between high grade, low grade and government bonds) reveal January seasonality and that the seasonality is robust across different states of the economy except for low grade bond returns and default premiums. January seasonality for low grade bond returns and low grade bond default premiums are primarily driven by results found during periods of economic expansion. Overall, January seasonality is more evident during the economic expansion periods although the magnitude of default premiums is larger during periods of economic contraction. Furthermore, prior findings of strong summer equity returns are primarily driven by the results found during the periods of economic contraction. It is also found that equity returns are generally higher during periods of economic expansion. 相似文献
4.
Peter Wright Mark Kroll Peng Chan Karin Hamel 《Journal of the Academy of Marketing Science》1991,19(3):245-254
Competing theories on internal orientation versus external orientation are examined. The relevant theories are amalgamated
and condensed into a number of competing propositions that are empirically tested. The findings suggest that the internally
oriented businesses as well as the externally oriented businesses underperform the efficient, marketing oriented businesses. 相似文献
5.
Joshua C.C. Chan 《International Journal of Forecasting》2021,37(3):1212-1226
Large Bayesian VARs with stochastic volatility are increasingly used in empirical macroeconomics. The key to making these highly parameterized VARs useful is the use of shrinkage priors. We develop a family of priors that captures the best features of two prominent classes of shrinkage priors: adaptive hierarchical priors and Minnesota priors. Like adaptive hierarchical priors, these new priors ensure that only ‘small’ coefficients are strongly shrunk to zero, while ‘large’ coefficients remain intact. At the same time, these new priors can also incorporate many useful features of the Minnesota priors such as cross-variable shrinkage and shrinking coefficients on higher lags more aggressively. We introduce a fast posterior sampler to estimate BVARs with this family of priors—for a BVAR with 25 variables and 4 lags, obtaining 10,000 posterior draws takes about 3 min on a standard desktop computer. In a forecasting exercise, we show that these new priors outperform both adaptive hierarchical priors and Minnesota priors. 相似文献
6.
7.
人民币新汇率形成机制下的上市公司外汇风险暴露 总被引:4,自引:0,他引:4
本文运用国际金融理论中经典的Augmented Market模型、2005年7月21日人民币汇率形成机制改革之后20个月的汇率变动数据和股票市场收益率数据来分析中国上市公司在新汇率形成机制下的外汇风险暴露问题。实证研究的结果显示,中国A股上市公司的整体股票收益率对汇率波动的敏感程度非常显著,且人民币兑美元汇率的升值推动了A股上市公司平均收益率的上升。 相似文献
8.
论虚拟技术创新实验室的构建 总被引:3,自引:0,他引:3
从建设虚拟技术创新实验室的必要性、可能性、组建形式和程序,组件分析、建设原则,虚拟技术创新实验室与生产力促进中心的比较等方面进行论述,有利于社会化技术创新支撑服务体系建设。 相似文献
9.
Abstract. This study examines whether mandatorily redeemable preferred stock (MRPS) is priced more like debt or equity by (1) investigating its debt and equity characteristics and (2) specifying conditions under which one characteristic would dominate the other. Based on a sample of 113 nonconvertible MRPS issued during 1970 to 1990, our results are consistent with the view that MRPS has both debt and equity characteristics. The debt (equity) feature is more pronounced among nonutility (utility) issues. Within the utility group, we find high (low) rated MRPS issues to be more debt (equity) like. Our results appear to support current MRPS disclosure rules. 相似文献
10.