VARIANCE BOUND TESTS OF BOND MARKET EFFICIENCY

In this paper we examine variance bound tests of the joint hypothesis that (1) bond markets are efficient and (2) the term structure is determined by the expectations hypothesis. Both the Singleton and Shiller tests are shown to be seriously biased toward rejecting the joint hypothesis in finite samples. Flavin's test is unbiased but has a very high variance leading to many false rejections of the joint hypothesis. When corrected as suggested by Flavin, Shiller's test is unbiased and has a relatively low variance. Unfortunately, it is also sensitive to measurement error.     

德国如何成功举办世界杯足球赛

2006年德国世界杯足球赛是2008年北京奥运会之前全球最大的体育赛事。北京市发改委奥运经济高级顾问黄为专程前往德国，为北京奥运求取真经。[编者按]     

Influence analysis for Poisson inverse Gaussian regression models based on the EM algorithm

For Poisson inverse Gaussian regression models, it is very complicated to obtain the influence measures based on the traditional method, because the associated likelihood function involves intractable expressions, such as the modified Bessel function. In this paper, the EM algorithm is employed as a basis to derive diagnostic measures for the models by treating them as a mixed Poisson regression with the weights from the inverse Gaussian distributions. Several diagnostic measures are obtained in both case-deletion model and local influence analysis, based on the conditional expectation of the complete-data log-likelihood function in the EM algorithm. Two numerical examples are given to illustrate the results.     

The impact of market orientation on patient loyalty: the mediation of relationship quality

In health services, how to establish good relationships with patients and enhance patient loyalty has been crucial for service managers. We explore the impact that patients’ perceptions of market orientation direct effect on patient loyalty to a hospital as well as indirect effect via the mediation of relationship quality. Self-administered questionnaires were employed to collect data from outpatients. 450 questionnaires were valid. Results showed that market orientation had a direct positive impact on patient loyalty to the hospital and an indirect positive impact via the mediation of relationship quality and patient loyalty to a physician.     

The role of intermediaries in facilitating trade

This paper documents that intermediaries play an important role in facilitating international trade. We modify a heterogeneous firm model to allow for an intermediary sector. The model predicts that firms will endogenously select their mode of export - either directly or indirectly through an intermediary - based on productivity. The model also predicts that intermediaries will be relatively more important in markets that are more difficult to penetrate. We provide empirical confirmation for these predictions using the firm-level census of China's trade, and generate new facts regarding the activity of intermediaries. We also provide evidence that firms begin to export directly after exporting through intermediaries.     

《企业财务通则》解读之六 第六章 收益分配

<正>《企业财务通则》(以下简称《通则》)第六章主要规范企业的收益分配。所谓收益分配是指企业实现的净利润如何在投资分红和再投资之间进行分配,《通则》从企业收入管理、股权投资收益的处理、年度亏损的弥补、年度净利润的分配以及其他要素参与分配等几方面做了具体规定。一、企业收入的管理收入包括企业销售商品收入、劳务收入、利息收入、使用费收入、租金收入、股利收入以及投资者、经     

ARXAN,Just Beyond Your Imagination

Tired of the hustle and bustle in the crowded city? Don't worry; we always have some other options to please ourselves. Sited in the north-east of Inner Mongolia Autonomous Region of China, neighboring on Mongolia, and also nearby Russian, there is a paradise on earth. Named "Saint Spring & Snowy City", Arxan is everything more than your expectation.     

神经网络在实验室检测工作质量管理及控制中的应用

对实验室检测工作质量中存在的风险因素进行研究,形成风险评价指标体系,并运用BP神经网络建立风险分析评价模型,对风险评价指标进行量化评价,最终获得量化的实验室整体检测工作质量风险数据,为实验室有效管理提供科学决策依据。     

Der Patient als Partner

Die Patientenedukation schlie?t eine umfassende Information und Beratung des Betroffenen hinsichtlich der verschiedenen Aspekte seiner Erkrankung ein. Gerade bei geriatrischen Patienten mit oft komplexen Krankheitsbildern ist sie oft die Voraussetzung für ein weiteres selbstst?ndiges Leben. Was geh?rt alles dazu?