基于ArcSDE和SQL Server 2005的城乡动态监测集成数据库的构建——以义乌市城乡动态监测集成数据库为例

海量城乡动态监测数据的组织和管理是城乡动态监测亟待解决的问题。本文以义乌市城乡动态监测集成数据库为例,在对城乡动态监测集成数据库特点进行深入分析的基础上,介绍了基于ArcSDE和SQL Server 2005的城乡动态监测集成数据库设计及构建流程,并对城乡动态监测数据分类与编码、数据库逻辑设计及数据库存储设计进行了详细阐述。     

Should sequels differ from original movies in pre-launch advertising schedule? Lessons from consumers' online search activity

Sequels have become a profitable strategy in the U.S. motion picture industry because of their strong name recognition. However, while the established positioning of a sequel may help insulate it from competing firms' advertising messages, its familiarity may cause moviegoers to be more easily satiated with advertising from the sequel. Therefore, this study examines how sequels differ from original concept movies in terms of their ad effectiveness. We focus our analysis on pre-launch periods, given these periods' importance in shaping the financial outcomes of motion pictures. We consider the weekly online search volume of a movie as a measure of consumer interest in it, and thus as an intermediate response to pre-launch advertising. We then develop a model that assumes ad effectiveness can decline, due to copy and repetition wearout, and increase, due to forgetting, over time. We find that copy wearout is greater for original movies, while repetition wearout and forgetting are greater for sequels. These findings suggest that sequels should allocate more in early pre-launch periods and less immediately before release, relative to originals, to maximize pre-launch consumer interest.     

城市轨道交通相邻多车站动态协同限流研究

为应对城市轨道交通车站高峰期客流压力,限流已经成为常态应对措施,而经常采用的限流策略大多针对单个车站,缺少对相邻多个车站的协同考虑。基于客流在车站间的传播效应,以乘客总延误时间最小为目标,以站台及列车能力为约束条件,构建城市轨道交通相邻多车站协同限流决策模型,同时为实现实时动态控制,引入滚动时域控制方法,优化多车站动态协同限流流程。以北京地铁8号线为例,经过相邻若干车站运营数据进行限流策略计算。结果表明,该模型限流可以在不造成车站服务人数损失的同时,将乘客总延误时间降低21%。     

Dynamic cost functions and freight transport modal split evolution

The paper studies the characteristics of the evolution over time of modal split for a transport system in which various modes compete with each other and face the freight flow increase in different ways. It is shown that the modal split evolution is constituted by a sequence of time periods, in each of which the dynamic characteristics of the system are different. An equilibrium, stable or unstable, is reached after a transition phase, whose length depends on the characteristics of the system, and in some cases exceeds the length of the period, so that an equilibrium is not reached.     

Overcoming corporate rigidities in the dynamic Chinese market

Companies often bring in what they believed and utilized in the past when they invest in the dynamic market of China, where changing environmental conditions often render existing beliefs and practices irrelevant. Over-generalizing from past situations could become a source of corporate rigidity, which results in a company's inability to anticipate the rapid changes that require evolution in its established systems, products, and market orientation. Companies must overcome corporate rigidities if they are to respond to the huge opportunities in China in a timely manner. In our research, we identified four distinct corporate rigidities—mindset rigidity, strategic rigidity, operational rigidity, and HRM rigidity—to help managers identify and assess the impact of rigidity on their China businesses. We provide four practical strategies for overcoming the four types of corporate rigidities.     

Transformation and Rebirth of Chinese Brands: A Case From the Hotel Industry

ABSTRACT

Chinese domestic brands have developed rapidly in recent years, and yet few of them have entered global competition as product or service brands brands with exceptions such as Huawei. In addition, the evolution of Chinese brands has hardly been understood or introduced properly by international business educators. In this article, we identify the development patterns of Chinese domestic brands by using a local hotel brand as an example. Particularly, we examine and discuss how a Chinese brand can be established with specific positioning, brand image, and product offering, as well as how the brand can grow by vertical and horizontal extensions based on balancing market opportunities and the brand’s own capabilities. Moreover, we expect this research to facilitate the understanding of Chinese brands among international business education.     

Technology competencies in competitive environment

Although prior studies suggest that technology competencies play a significant role in firm innovation and competitiveness, what and how technology competencies interacted with competitive environment affect firm innovation has not been fully understood. This paper fills this research gap through a questionnaire survey of 165 firms together with a number of interviews drawn from the Taiwan's information and communication technology (ICT) industry. The results suggest that capabilities of exploring or exploiting technological opportunities, core technology capability, and autonomy of R&D decisions are particularly important to firm innovation in a highly competitive environment, whereas over commitments to existing technologies may constrain a firm's innovation especially in such environment. Moreover, different types of competitive environment require different types of technological competencies to enhance firm innovativeness. This paper contributes to the existing theory by examining the joint effect of technology competency and competitive environment on a firm's innovation.