需求价格弹性理论的一个应用——大学生手机消费的实证分析

本文基于弹性理论与回归分析等方法,分别从几个方面对当今大学生的手机消费现象作了较为深入的研究。文中通过对江苏省高校在校学生的手机消费情况进行实证分析,得出了一系列具有参考价值的数据,并以此对国内的手机行业和手机市场提出了一些合理的建议和策略。     

European market integration and the political economy of corporate adjustment: OTE and Telecom Italia, 1949–2009

Despite the common challenges posed by European market integration and liberalisation, the behaviour of telecommunications operators across Europe suggests a variety of modes of adjustment and paths to privatisation. The article examines the puzzle of divergent responses to liberalisation by OTE and Telecom Italia (TI), casting light on their distinct paths to privatisation and internationalisation. The cases are considered in the context of the Varieties of Capitalism frame, which challenges the perspective that global market integration will lead to convergence in strategies and structures. Thus, the article suggests that the observed differences are largely explained by the domestic actors' preferences, and to a much lesser extent attributed to the globalising forces of technological change and competition.     

基于无线PKI的移动支付认证鉴权服务平台研究

移动电子商务已经成为市场发展的趋势,但移动支付的安全问题也日益突显。为了保证移动支付的安全,在分析了无线PKI系统的结构和实现流程的基础上,设计了基于无线PKI的移动支付认证鉴权服务平台的框架和体系结构,进而设计了了移动支付认证鉴权服务平台的构建过程,用以指导移动支付认证鉴权服务平台的开发和实现。     

Reducing the level of switching costs in mobile communications: The case of Mobile Number Portability

Switching costs are one of the most important economic forces that affect market competition in mobile communications. Both theoretical and empirical studies have shown that switching costs reduce market competition leading to higher prices, lower product and service quality, and lower customer welfare. Given their negative consequences, national regulatory authorities have designed policies aimed at reducing switching costs and fostering competition. One of the most important of these, in the mobile communications industry, is mobile number portability (MNP). The aim of this paper is to investigate the effect of MNP on switching costs in mobile phone services. First, a hierarchical Bayes model is proposed to measure switching costs at the customer level and to investigate the impact of MNP on them. Second, this study examines the drivers of MNP adoption by customers using a binary logit specification. The results reveal that this regulatory policy has significantly reduced the cost of switching and that MNP adoption partially depends on customer-related variables.     

A Consideration of Telecommunications Market Structure in the Presence of Municipal Provision: The Case of US Cities

We consider the effect of government-owned telecommunications providers on privately owned rivals by comparing the presence of private telecommunications services providers alongside municipal competitors in the US telecommunications industry from 1999 through 2002. Our primary finding is that the presence of a municipal provider is negatively correlated with a city’s having private providers. However, the marginal effects indicate that the effect of municipal competition on private provision is largely concentrated on the first entrant, suggesting cities may choose to provide telecommunications services in areas with inadequate demand to support private provision.     

生活方式对中国消费者购买行为的影响——以上海手机市场为例

本文主要研究生活方式对中国消费者购买行为的影响。选择手机作为研究对象,上海作为样本的选择地点,在问卷调查的基础上,借助探索性因子分析和确认性因子分析,创建并验证了中国人的生活方式度量量表。随后用结构方程模型对生活方式与购买行为之间的关系进行了研究,详细分析了生活方式各因子与购买行为之间的内在联系。最后,作者根据研究结果从生活方式的视角提出了一个全新的中国消费市场划分方法,帮助企业针对消费群体,定位、设计、生产、完善产品和实施有效的市场营销策略。     

Does the Use of Mobile Phones by Smallholder Maize Farmers Affect Productivity in Ghana?

ABSTRACT

This study evaluates the effects of mobile technology on productivity and the channels of transmission of these effects. Using propensity score matching procedures, the results show that mobile phone ownership and use significantly improves agricultural productivity. Specifically, the mobile phone improves the productivity of user-farmers by at least 261.20 kg/ha per production season. Further, we find that phone ownership and use impacts productivity more than phone use only. The identified channels of effect are extension services, adoption of modern technology and market participation. These results have key policy implications for Ghana and developing economies at large.     

Roaming and investments in the mobile internet market

This model discusses mobile network operators' (MNOs) incentives to invest in their network facilities such as new 4G networks under various regimes of data roaming charge regulation. Given an induced externality of investments (spillovers) due to the roaming agreements it will be shown that MNOs, competing on investments, widely set higher investments for below cost regulation of roaming charges. Otherwise, if MNOs are free to collaborate on investments, they set higher investment levels for above cost roaming charges. Both below and above cost charges may be preferred from a welfare perspective. Furthermore, the paper discusses effects of the roaming charge regulation on roaming quality and MNOs' coverage.     

How users’ Internet experience affects the adoption of mobile payment: a mediation model

Mobile payment becomes a convenient way to complete transactions due to the increasing popularity of mobile devices and the maturity of related technologies. Users’ experience of using computers and the Internet in financial activities largely affects their intention to use mobile payment. Combining the Technology Acceptance Model and Innovation Diffusion Theory, we examined the mediating effect of five factors, that is, perceived usefulness, perceived ease of use, compatibility, risk, and privacy concern, in the relationship between Internet experience and the adoption of mobile payment. Data from 922 mobile users supported the partial mediating effects of the five factors.