Evolution and determinants of digital divide in Brazil (2005–2013)

During the last decades, the widespread growth of information and communication technologies (ICT) has posed incentives to broaden the participation of individuals in social, political and economic dimensions of life. However, utilization of ICT also involves access to technology and infrastructure, and acquisition of skills to deal with innovations and, thus, digital literacy is, primarily, a complementary good. The digital divide expresses inequalities in access and utilization of ICT among individuals and populations in different countries. The study adopts inequalities indexes of Internet access and mobile phone ownership to measure use of ICT goods, accounting for the digital divide in Brazil. The inequality indexes are also split according to main determinants using four nationally representative survey data from 2005 to 2013. Results indicate that the digital divide among individuals is decreasing quite fast among Brazilians over time. However, there is room for policies of mass access to ICT goods based on mobile Internet broadband access. In addition, digital illiteracy, evaluated by lack of education, is one of the main determinants of the digital divide in the country, especially among elderly individuals.     

通信机房改善谐波环境措施研究

本文通过大量可信的实际通信电源机房数据,进行系统的科学的分析统计,得出了具有一定实际参考价值的结论,并结合电力谐波整改的实际情况提出了改善通信机房电力谐波环境的措施。     

移动图书馆——泛在知识环境下的图书馆信息服务新途径

泛在知识环境下的移动图书馆为图书馆信息服务提供了新途径,是图书馆向数字化、信息化发展的新方向。本文简单介绍了移动图书馆的相关概念、特征和服务类型,分析了发展移动图书馆的障碍并提出了应对策略。     

Electronic Marketing Communications: An Evolving Environment,but Similar Story Regarding the Perception of Unsolicited Commercial E-Mail and Postal Direct Mail

The internet is still a relatively new mass communication tool for advertisers and marketers. When weighing the potential benefits of electronic techniques against the financial investment, spam seems particularly attractive to marketers for either for-profit or non-profit objectives. Since it is unlikely that marketers will decrease their efforts related to spam and postal direct mail as a form of communicating to mass consumers, it is important to track consumer attitudes so that audiences are not subjected to the backlash predicted by psychological reactance. The results of this study found that spam is more irritating than postal direct mail at both T₁ (2004) and T₂ (2006), and participants in T₂ found both direct marketing communication methods more intrusive than those in T₁.     

The influence of satisfaction on customer retention in mobile phone market

This study examines the determinants of customer satisfaction and customer loyalty in the Peruvian mobile phone market. Based in a survey to 1259 customers, Multinomial Logit and GSEM estimations show how determinants of customer satisfaction can be assessed when satisfaction is measured through ordered categorical data. The results confirm that in mobile phone market Customer Satisfaction influences strongly on Customer Loyalty, and in turn Loyalty is an important determinant of Customer Retention. In contrast with previous literature, this study identified the differentiated influence of diverse factors on positive and negative customer satisfaction categories. Indeed while results show that quality of service assessments made by customers had a significant impact on both negative and positive customer satisfaction categories; assessments of other service attributes like customer care, information on tariffs and plans and billing clarity, only showed a significant statistical influence on positive categories of customer satisfaction. Similar asymmetrical results were found with regard to other economic, socioeconomic and geographical determinants of customer decisions. As well, an analog effect is also observed in the relationship between customer satisfaction and loyalty, where only positive satisfaction assessments helps to explain the loyalty of users. Finally, results show that while satisfaction can be identified as a powerful cause of CR, switching barriers did not deter more demanding customers to switch to alternative carriers, suggesting that recent pro-competition regulatory reforms implemented in Peru contributed to reduce these barriers to competition in mobile markets.     

Planning and implementing effective mobile marketing programs

Mobile marketing is an ever increasingly important component of a firm's overall promotional strategy. The importance of this medium can be seen through time spent on mobile media, number of searches, and direct and indirect mobile-generated sales. Despite its increased importance, the effectiveness of mobile marketing needs to be improved based on such metrics as bounce rates, add-to-cart rates, shopping cart abandonment, and average order size. Strategies to increase the effectiveness of mobile marketing are discussed. Firms need to capitalize on the three major strategic advantages of mobile marketing: (1) the fact that mobile marketing devices are always on, always connected, and always with the consumer; (2) the ability to generate location-sensitive offers; and (3) the ability to send relevant personalized messages and offers. Firms also need to develop and implement an effective mobile marketing strategy through a series of activities. These include understanding and reacting to the complexity of mobile marketing, designing sites based on ease of use versus ‘bells and whistles,’ increasing opt-in rates, using effective customer engagement strategies, and developing effective mobile coupons. Criteria to evaluate the effectiveness of mobile marketing are discussed.     

Mobile marketing: A literature review on its value for consumers and retailers

The article describes the existing knowledge of how mobile marketing can increase the value for consumers and retailers. Mobile device shopping, and consumers' use of mobile devices while shopping is shown to be both an extension of consumers' shopping behaviours developed on Internet-connected desktop and laptop computers (PC), and potentially new behaviours based on a mobile devices' uniquely integrated features such as camera, scanners and GPS. The article focuses on how mobile marketing creates value for consumers and retailers, enabling more precise research and development of managerial concepts and tools while providing both managers and academics with increased understanding of mobile marketing and its value outcomes for retailers.     

抽样定理的System View仿真与实现

通过分析SystemView仿真软件的优势及主要的功能模块库和应用领域,重点通过通信系统中的抽样定理实例介绍了该软件的使用方法及注意事项。最后,总结该软件的教学应用效果及对相关课程教学的借鉴作用,特别适合通信系统的仿真与设计。     

On regulations for 5G: Micro licensing for locally operated networks

Future 5G networks aim at providing new high-quality wireless services to meet stringent and case-specific needs of various vertical sectors beyond traditional mobile broadband offerings. 5G is expected to disrupt the mobile communication business ecosystem and open the market to drastically new sharing based network operational models. 5G technical features of network slicing and small cell deployments in higher carrier frequencies will lower the investment barrier for new entrants to deploy local radio access networks and offer vertical specific services in specific areas and allow them lease the remaining required infrastructure on demand from mobile network operators (MNO) or infrastructure vendors. To realize the full vision of 5G to benefit the society and promote competition, innovation and emergence of new services when the 5G end-to-end network spans across different stakeholders administrative domains, the existing regulations governing the mobile communication business ecosystem are being refined. This paper provides a tutorial overview on how 5G innovations impact mobile communications and reviews the regulatory elements relevant to 5G development for locally deployed networks. This paper expands the recent micro licensing model for local spectrum authorization in future 5G systems and provides guidelines for the development of the key micro licensing elements. This local micro licensing model can open the mobile market by allowing different stakeholders to deploy local small cell networks with locally issued spectrum licenses ensuring pre-defined quality guarantees for the vertical sectors’ case specific needs.     

Leveling the playing field: factors influencing trade show success for small companies

Recent research indicates that trade shows are a place to find prospects and close sales. Yet, many requisites of success found in prior studies may not be available to companies with limited resources. A study that compares the activities of successful vs. unsuccessful exhibitors from small companies was conducted. Results indicate similar budgets, yet very different results. Factors influencing success include strategic factors such as centering responsibility in one position, as well as tactical decisions such as those regarding pre-show promotion.