关于电信业重组问题的思考

电信重组已成为最大的投资主题，这不仅将改变整个电信行业的竞争结构，还成为影响未来国内电信投资最重要的因素。本文分析了中国电信业重组亟待解决的若干问题，并提出了相关对策。     

A comparison of three methods for assessing the walkability of the pedestrian environment

This paper presents the results of a research project conducted in the UK designed to increase understanding of the factors which influence levels of walking and pedestrian route choice. It describes a number of techniques that were used to assess the pedestrian environment from a pedestrian’s perspective. These techniques included a computer based tool developed using stated preference surveys to determine the relative values of a range of factors in the pedestrian environment; an on-street survey that was designed to investigate values and attitudes towards different attributes of the pedestrian environment along a route; and finally an ‘on the move survey’ where pedestrian volunteers were interviewed while walking along the route in order to get an actual account of their experiences as they walk. A case study is then used to show the benefits and disadvantages of using these different techniques and compares results for a pedestrian route in the City of Leeds in the UK. The results indicate that there were a number of pedestrian attributes considered important by pedestrians when walking including pavement cleanliness, safe crossing places, good connectivity and sense of security. The three approaches complement one another and have highlighted in different ways that the walking experience is affected by the cumulative impact of multiple interactions (both positive and negative) as people walk in the pedestrian environment.     

浅析西安电信网络管理中的问题及对策

随着科技的发展,通信网络在不断的演变,普及到人们生活的各个方面,由于通信网络的产生,改变了人们传统的沟通方式,为人们的生活带来的巨大的改变。然而,由于网络所具有的开放性特征,也为信息网络安全带来了巨大的威胁,本文将针对西安电信通信网络的管理中常见的问题及对策进行简要的分析。     

Between a rock and a hard place: Recession and telecoms taxation

Excessive taxation in the telecoms services sector is rarely found in developed economies as it hinders high technology investments, confines innovation and eventually impedes economic growth. Recession eventually complicates this process. In this paper the repercussions of multi-layer service taxation on the Greek mobile sector during the last five years are studied. It is found that public revenues, companies and subscribers would significantly benefit from a direct decrease of the special levy imposed on the use of mobile services today. An econometric model that links the consumption propensity of mobile voice service usage with the disposable income of the users and the price of the product is applied. The results of this research indicate that the adoption of high sector specific service taxes with the objective of increasing government revenues creates an economic distortion that lowers service usage, shrinks sector revenues, and, ultimately, jeopardizes the competitiveness of the mobile telecommunications sector.     

Functional separation in Swedish broadband market: Next step of improving competition

Technological development together with liberalization policy has led to competition in the telecommunications market. Broadband has been recognized as a driving force in the social and economic development of nations, and many countries have introduced policies and/or regulatory frameworks to improve competition in broadband markets. An evolution can be seen from the 1980s until the present day through open access to local loop unbundling to several degrees of separation including functional separation. There are several countries implementing functional separation such as the UK, Italy, Sweden and, recently the EU. It has been suggested that functional separation can be an effective policy for increasing competition in broadband markets under certain circumstances. Sweden has implemented functional separation by amending the Swedish Telecommunications Act in 2008 to include mandatory functional separation as one of the powers of the PTS, the Swedish telecommunications regulator. Although TeliaSonera, the incumbent fixed line operator decided to voluntarily separate part of their business, the amendments to the law were debated with arguments similar to the debates in the EU following the new regulatory framework implemented in 2009. Against this background, this paper provides an overview of the development of functional separation in the EU and European countries such as Sweden and the UK. The paper also provides a theoretical and empirical analysis of the implementation of functional separation. The evolution of functional separation in Sweden is explained and ends with a discussion of the implementation of functional separation in the Swedish broadband market.     

The digital divide problem: An economic interpretation of the Japanese experience

This study presents an economic analysis of Japan's attempt to address the geographical digital divide problem for broadband and mobile telephone services. To receive broadband service local inhabitants make voluntary contributions, which are matched by a municipal subsidy. The approach is effective in terms of economic efficiency and equity. Importantly, as fixed broadband service is provided locally the benefits are limited to local inhabitants. By contrast, mobile service is provided via a spectrum user fee system. That is, for mobile telecommunication services, no universal service fund exists. The underlying rationale is that subscribers are beneficiaries and commercial decision-making should be left to mobile operators.     

Diffusion models of mobile telephony

Growth models are applicable to mobile telephony diffusion. Although cross-sectional performance comparisons of models are numerous, varying stages of the S-shaped diffusion curve have not been analyzed by longitudinal studies. This study determines whether the best model applies to an entire diffusion life span. Mobile telephone subscriber data for Taiwan during 1988-2007 are analyzed to compare the performance of three popular diffusion models and one well-known forecasting model—the Gompertz, Logistic, Bass, and time-series autoregressive moving average (ARMA) models, respectively. Empirical results indicate that the Gompertz model outperforms the other models before diffusion take-off, and the Logistic model is superior after inflection and over the aggregate range of the diffusion. Network externalities are the dynamics of the Logistic model and account for its excellence. This longitudinal study is the first to present empirical evidence indicating that the appropriate diffusion model for mobile telephony is stage-dependent, complementing the case dependency of the appropriate diffusion model demonstrated by cross-sectional studies.     

Extracting Value from the Supply Chain with Mobile Technologies

Abstract

This paper attempts to alleviate some of the current confusion about the capabilities of mobile technologies in the context of the enterprise and its supply chain. Unique features that differentiate m-business from e-business are explored. We highlight the sources of value creation of m-business applications by extending a theoretical framework proposed by Amit and Zott (2001), and we suggest potential areas in which mobile technologies appear exceptionally suited to produce cost savings or opportunities for differentiation of product or services. Two dimensions of value creation stand out: efficiency and novelty.     

Developing an Effective Mobile Rescue Support System

Abstract

Mobile computing technology is now rapidly developing in the area of health care service requiring the use of mobile access to information at remote locations. Mobile information transmission systems distribute data to and from remote basis with information sent back and forth using client/server architecture through any wireless communication media. As such, decision-making for any application domain could then be based on complete knowledge as events occur. This immediate decision-making at a critical time is of particular importance in the case of accidents and/or disaster. However, many application obstacles within wireless computing are yet to be resolved. One major issue is the speed of data retrieval, which directly affects the performance of mobile database applications and can affect the emergency rescue process. In this paper, we investigate a semantic-based transaction management mechanism for mobile emergency rescue support system. We then develop a prototype system by using the mechanism and evaluate the performance of the system.     

Competitive behavior in the European mobile telecommunications industry: Pioneers vs. followers

This paper studies the relationship between competitive strategy and improvement in the competitive position of pioneers and followers in the mobile telecommunications industry. The analysis uses a panel of data comprising all the actions of European firms operating in the digital mobile telecommunications industry with GSM 900 and/or DCS 1800 networks. The results show that competitors gain market share when they follow competitive strategies that are different from those of other firms. The paper also finds that price reduction actions represent the best approach for followers, while differentiation actions are the most effective strategy for pioneers.