Competitive intelligence practices of industrial marketers

This paper explores two ideas: that the competitive inteligence-gathering efforts of industrial marketers differ in purpose from those of consumer marketers, and that the scope of those efforts can be explained by a model incorporating purpose, size, competitive environment, and strategy. Based on data provided by employees of 151 firms, support is found for both of the basic ideas explored.     

基于System View的256QAM信号调制与解调的仿真实现

在介绍正交振幅调制(QAM)信号的调制、解调原理的基础上,以相对比较复杂的256QAM为例,对QAM信号的频带利用率和误码率性能进行了分析,给出了用动态系统仿真和分析软件SystemView进行系统仿真的具体设置,并分析了仿真结果。     

基于单元星形光纤网的最大总光程及其求解方法

研究了单元星形光纤网中,最多光路数目与最大允许光链路损耗间的关系,推出了在给定最大允许光链路损耗、不同光路数目时各路总光程的求解方法,进而得到最佳光路数目与最大总光程,最终得出六条结论。     

What Drives TBL Reporting: Good Governance or Threat to Legitimacy?

This paper provides two complementary explanations for the adoption of triple bottom line (TBL) reporting by Australian companies. The first explanation is that companies adopt TBL reporting to legitimise their relationship with society because of adverse publicity from the media. The second explanation is that TBL reporting is adopted because of the company's desire to achieve high‐quality reporting and transparency inferred by strong corporate governance. Companies with TBL reporting had significantly more adverse media coverage before implementing TBL reporting than non‐TBL companies. TBL reporting is also significantly and positively related to the existence of an environmental or sustainable development committee and the frequency of meetings of the audit committee.     

浅议数控加工中的图形化编程技术

本文介绍了采用Unigraphics软件系统实现复杂型面零件数控加工的图形化编程技术的一般方法和采用该软件系统二次开发实现数控加工反向模拟技术,探讨了提高数控加工质量和效率的途径。     

Performance of Ethical Mutual Funds in Spain: Sacrifice or Premium?

There is currently much debate in the economic literature about whether ethical investment involves a financial sacrifice or premium. One of the most common methods of testing this compares the financial performance of ethical investment funds with that of other funds not considered “socially responsible” or ethical. The majority of these research studies evaluate the performance of the ethical funds according to classic measures, whereby different financial markets, in different countries and for different periods of time serve as reference for evaluation. The ultimate conclusion of all of these studies is that there are no significant differences between the performance results of one type of funds and the other. In Spain, ethical investment funds are still an incipient sector of investment. To date, the Spanish market has not been included in any type of analysis of these characteristics. Therefore the main objective of this article is to compare the financial performance of ethical investment funds to that of other funds in the Spanish retail market. We propose the aggregate type of analysis as the Spanish ethical investment funds have experienced a weaker development in comparison to those of other developed countries. In the first step we suggest the financial performance to be compared by style analysis since the asset distribution of the Spanish Social Return Investment (SRI) funds differs from the European trend. In particular, we use the multifactor regression model with style benchmarks. We found that their financial performance is in all cases superior or similar to that achieved by the rest of the funds. In the second step, to achieve a more robust and homogeneous comparison, we used the bootstrap method, comparing ethical and non-ethical fund subsamples by homogeneous groups. No significant differences between these two types of funds have been found. Thus, if we assume the positive o neutral effect of ethical investment on investor utility in the retail Spanish market the financial and social performance (FSP) of ethical funds will be, in aggregate, superior to the FSP achieved by conventional funds. In conclusion, the financial performance of ethical mutual funds in Spain is no sacrifice.     

饭店服务质量测量方法研究综述

提高服务质量是饭店企业区别于竞争对手,获得相对竞争优势的重要手段.要改善服务质量,首先需要有效和实用的测量方法对服务质量进行可靠和准确的测量.本文对服务质量的测量方法进行了综述,分析它们在饭店业中的应用现状及问题,同时阐述了饭店服务质量测量的新趋势.     

A new higher-order weak approximation scheme for stochastic differential equations and the Runge–Kutta method

The authors report on the construction of a new algorithm for the weak approximation of stochastic differential equations. In this algorithm, an ODE-valued random variable whose average approximates the solution of the given stochastic differential equation is constructed by using the notion of free Lie algebras. It is proved that the classical Runge–Kutta method for ODEs is directly applicable to the ODE drawn from the random variable. In a numerical experiment, this is applied to the problem of pricing Asian options under the Heston stochastic volatility model. Compared with some other methods, this algorithm is significantly faster. This research was partly supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C), 15540110, 2003 and 18540113, 2006, the 21st century COE program at Graduate School of Mathematical Sciences, the University of Tokyo, and JSPS Core-to-Core Program 18005.     

高职院校物流管理课程教学方法改革探讨

教学方法是完成教学任务、实现教学目的的关键。物流管理课程教学方法改革是我院物流管理课程建设的一个重要内容。本文总结分析教学方法改革的指导思想、主要的教学方法、基本要求。     

企业人力资源绩效评估中的激励型互动赋权模型

绩效评估是激励机制中的重要一环,企业中的人力资源部门常常要对其员工进行绩效评估,以确定员工的工作表现,再对表现优秀者给予一定的奖励,以达到激励员工的效果。而传统的评估方法的缺点是不能引入员工的参与,不能达到很好的激励效果。本文提出一种能充分引入员工参与,调动员工积极性的企业人力资源绩效评估中的激励型互动赋权模型。