An SAO‐based text‐mining approach for technology roadmapping using patent information

A technology roadmap (TRM) links technologies with a company's strategic objectives and so supports acquisition of required technologies in advance of needs. It is a powerful tool for strategic planning and technology management. Because technology is changing rapidly and market competition is fierce, the role of a TRM is becoming increasingly important. To support the role of a TRM, many firms and governments that use roadmapping are becoming interested in reducing costs while retaining objectivity during TRM development. One suggestion to achieve these goals is to use the keyword‐based quantitative approach to creating a TRM, but the information provided by the approach is limited because of the characteristics of keyword information. To solve this limitation, this research uses the concept of ‘function’ to support quantitative analysis for developing a TRM. The concept of function can provide information on the uses and purposes of a technology. To represent a function, a subject–action–object structure is commonly used. The suggested approach allows research and development (R&D) managers to extend the views of product and technology during development of a TRM. In addition, by reducing the time required to develop a TRM, the proposed approach supports quick and accurate decision‐making by R&D managers.     

INVESTMENT PERFORMANCE OF COMMON STOCKS IN RELATION TO INSIDER OWNERSHIP

In this paper, the authors empirically examine whether corporations with high degrees of insider ownership enjoy superior returns compared with firms with more diffuse ownership. In addition, the authors evaluate the effects of insider ownership on security returns in relations to the well-known effects of size and earnings yield (or price-earnings) ratios. Results indicate that, in addition to Basu's price-earnings effect, insider ownership is a new statistically significant variable that is associated with abnormal returns. This return anomaly might occur because the market pays an inadequate price for top managements' equity ownership, a firm-specific fundamental variable that has a theoretical foundation in agency theory.     

Advertising, Its Determinants, and Market Structure

This study derives a formal model of firm advertising behavior and applies it to the industry level to figure out the relationship between advertising and market structure. The firm advertising model shows that both consumer preference andfirm-specific advertising competence jointly determineprofit-maximizing advertising intensity. At the industry level, advertising intensity is represented multiplicatively by consumer preference and a measure of market structure, which reflects the joint distribution of the levels of advertising competence and market shares among firms. The new market structure measure suggests that those single-dimensional measures of market structure such as seller concentration and the Herfindahl index are inadequate in explaining interindustry differences in advertising intensity, and that the long-debated advertising-concentration relationship differs depending primarily on the appropriability of advertising. An empirical analysis of 426 five-digit Korean manufacturing industries shows that an inverted U-shaped relationship between the Herfindahl index and industry advertising intensity is observed for consumer goods industries but a lazy J-shaped relationship for producer goods industries.     

论偿债能力评估

金融资产管理公司受国务院委托集中时间和力量,利用特殊手段集中处理商业银行多年累积的不良资产,在处置过程中主要运用债权(务)重组的手段实施折扣变现,而确定重组的依据是债务人的偿债能力.本文对如何进行偿债能力评估,评估结论如何表述,使用时应注意的问题作了一些探索.     

Yardstick and incentive issues in UK electricity distribution price controls

Electricity distribution is a primary candidate for regulation since it is a natural monopoly whose costs it would be inefficient to duplicate in a competitive market. In the UK since privatisation of the electricity industry in 1990, this regulation has emphasised incentives for cost efficiency through the use of RPI‐X price capping applied to 14 regional distribution businesses. The paper examines the issues that have arisen in implementation, including the practice of bench‐marking the operating and capital expenditures of different companies. It analyses how the price set at the beginning of each review period depends on the determination of cost yardsticks, the weighted average cost of capital and the regulatory asset base of the companies. The analytical model is used to evaluate Ofgem's 1999 Distribution Price Control Review and compares it with other European distribution price regulations.     

电子商务网络安全技术探讨

本文主要介绍了电子商务网络安全的概念,面临的威胁及数据加密技术,系统安全技术、防火墙技术。从而提供在实际应用中如何加强防范,提高网络安全性。