Predicting the equity market with option-implied variables

We comprehensively analyze the predictive power of several option-implied variables for monthly S&P 500 excess returns and realized variance. The correlation risk premium (CRP) and the variance risk premium (VRP) emerge as strong predictors of both excess returns and realized variance. This is true both in- and out-of-sample. Our results also reveal that statistical evidence of predictability does not necessarily lead to economic gains. However, a timing strategy based on the CRP leads to utility gains of more than 5.03% per annum. Forecast combinations provide stable forecasts for both excess returns and realized variance, and add economic value.     

Sybase数据库的磁盘镜像及故障恢复机制

数据库的可靠性是权衡数据库系统安全性的重要指标 ,数据库容错技术和有关故障 (包括系统故障、存储介质故障 )恢复决定了信息系统设计的规模和性能 ,特别是随着系统大型化 ,对数据库系统的联机处理性能提出了较高的要求 ,在故障恢复期间仍需具备一定的在线恢复 ( Non-Stop Recovery)能力。本文从故障恢复、磁盘镜像等方面讨论了Sybase数据库的有关机制     

Generating Enhanced Fishery Rents by Internalizing Product Quality Characteristics

This paper demonstrates howadditional rents are generated in a fisherycharacterized by intraseasonal variation infish characteristics, including size,condition, and composition. Based on anexpanded conceptual model of the optimalharvest rule, fish characteristics affect preand post harvest production yields and outputprices. A dynamic empirical model, which uses asystem of quality characteristics and anhedonic equation, illustrates the complexrelationships and management choices associatedwith internalizing seafood qualitycharacteristics in a hake fishery. The modelretains the regulated open access managementsystem, but controls intertemporal andintersectoral quotas, production portfolios,and total allowable catch. Results demonstratethat including revenue-side effects frominternalizing fish quality can generatesignificantly greater rents and reduce therelative benefits of increased productionyields. If excluded, bioeconomic models canunderestimate the level of regulatory rentdissipation and overemphasize managementobjectives such as full utilization, whichcould misdirect processing decisions and resultin a suboptimal resource management plan.Implications for data collection,multidisciplinary analysis, and improvements inmarine resource management are discussed.     

Stability, Asymmetry and Seasonality of Fund Performance: An Analysis of Australian Multi‐sector Managed Funds

Using a sample of Australian Multi-sector trusts we examine selectivity and market timing performance and extend the analysis to include the relatively new measure of volatility timing. This is of particular relevance to our data set, as high levels of volatility persistence are prevalent in Australia. In addition we consider the stability, asymmetry and seasonality of the various performance and risk measures. A survivorship adjustment procedure is also employed in order to assess the impact of survivorship on selectivity, market timing and volatility timing performance.     

小氮肥清洁生产实践

文章介绍了沅江市氮肥厂废水闭路循环、尾气回收、废渣综合利用等工程,并介绍了该厂的生产工艺、污染源分布及排污特点。     

The Recognition and Timing of Deferred Tax Liabilities

Abstract:   This paper examines the characteristics of firms that account for deferred tax liabilities related to government investment grants under an extended adoption timing period. Not only the recognition but also the timing decision is associated with changes in future performance and changes in the debt structure. Recognisers outperform non‐recognisers in the future, while early recognition is related to post recognition performance but only for those firms that currently perform well. Changes in the balance sheet structure are also related to both decisions. Firms with recent increases in the debt level tend to postpone recognition, while currently well‐performing firms that increase their future debt level are less likely to recognise deferred taxes.     

大力发展电子商务环境下的回收物流

电子商务的出现使物流产业的内涵与外延发生了重大变化,在电子商务中开展回收物流活动成了企业关注的一个重要问题.本文从回收物流的定义出发,描述了传统环境下和电子商务环境下的回收物流活动以及电子商务对回收物流的重要影响.     

风险投资项目退出的时机与方式选择研究

文章对影响风险投资项目退出时机选择的微观因素和风险投资项目退出方式及其必要条件进行了深入分析,文章认为,风险投资项目退出的时机与方式选择具有动态性和一体性特点,遵循风险资本增值最大化的一般性原则,选择适宜的退出时机与方式对风险投资项目实现投资收益或锁定投资损失有着重要的意义。     

The effect of management commitment to service quality on employees’ affective and performance outcomes

A service recovery performance model is proposed and tested with data from frontline bank employees in Turkey. The model is derived from Bagozzi's (1992) reformulation of attitude theory. The empirical results suggest that top management commitment to service quality, as manifested by frontline employees' appraisal of training, empowerment, and rewards, has a significant effect on their perceptions of service recovery performance. The influence of management commitment to service quality on service recovery performance is mediated by frontline employees' affective commitment to their organization and job satisfaction. Implications of the results and further research avenues are discussed. Emin Babakus (ebabakus@ memphis.edu) (Ph.D., University of Alabama, 1985) is a professor of marketing at the University of Memphis. In addition to theJournal of the Academy of Marketing Science, his research has been published in such journals as theJournal of Marketing Research, theInternational Journal of Research in Marketing, theJournal of Retailing, theJournal of Business Research, and theJournal of Advertising Research. He serves on the editorial review boards of several journals. Ugur Yavas (raxyavas@mail.etsu.edu) (Ph.D., Georgia State University, 1976) is a professor of marketing at East Tennessee State University. Besides theJournal of the Academy of Marketing Science, he has contributed to such journals as theJournal of Marketing Research, theJournal of Business Research, theInternational Journal of Research in Marketing, theEuropean Journal of Marketing, International Marketing Review, theJournal of International Marketing, Management International Review, theJournal of the Market Research Society, theInternational Journal of Service Industry Management, andLong Range Planning. He currently serves as the editor of theJournal of Asia-Pacific Business. Osman M. Karatepe (osman.karatepe@emu.edu.tr) (Ph.D., Hacettepe University, Ankara, Turkey, 2002) is an assistant professor of marketing at Eastern Mediterranean University (Turkish Republic of Northern Cyprus). He has contributed to such journals as theJournal of Hospitality and Leisure Marketing, The Service Industries Journal, Tourism Analysis, theInternational Journal of Hospitality and Tourism Administration, andAnatolia: An International Journal of Tourism and Hospitality Research. He currently serves as the associate editor of theEMU Journal of Tourism Research. Turgay Avci (turgay.avci@emu.edu.tr) (Ph.D., Cukurova University, Adana, Turkey, 1995) is an assistant professor of management at Eastern Mediterranean University (Turkish Republic of Northern Cyprus). He has contributed to such journals asThe Service Industries Journal, theJournal of Hospitality and Leisure Marketing, Tourism Analysis, theInternational Journal of Hospitality and Tourism Administration, andAnatolia: An International Journal of Tourism and Hospitality Research. He currently serves as the editor-in-chief of theEMU Journal of Tourism Research.     

Endogenous Timing in a Mixed Oligopoly with Foreign Competitors: the Linear Demand Case

We introduce foreign private firms into the model of Pal (1998) and investigate the impact of the introduction of foreign private firms on the endogenous timing in a mixed oligopoly in the linear demand case. We find that the public firm chooses to be a follower of all domestic private firms and that the public firm chooses not to be a leader of all foreign private firms, which is in contrast to Matsumura (2003).