An assessment of the liberalization and the evolution of competition in the Moroccan mobile market

This paper analyses the liberalization process of the Moroccan mobile market since the beginning of the 21 st century. Our database ranges from 2004 to the end of 2020. First, operators’ market shares are presented and analysed. Second, we build concentration indexes and other indicators of competitiveness. Finally, we conduct an econometric analysis to determine the extent to which regulatory measures, privatization, market structure and the population dimension determine market shares. Overall, we can argue that, although concentration remains high, the market has become more competitive since the liberalization process began. The statistical analysis and the econometric assessment show that the entrance of the third operator made the market more competitive. Indeed, there is evidence that operator companies competed to capture customers from each other during the period under study. These features suggest that mobile operators did not follow anticompetitive practices in order to restrain competition.     

多模终端待机低功耗设计

如今的移动通信网络是由多种制式及多个频段融合而成的多模网络，对于商用终端而言，多种难题交织在一起，其中待机时长是必须要解决的一个关键问题。为此，不同于传统增大电池容量的方法，采用降低待机功耗的策略：时域的时隙控制、频域的电流控制、睡眠和唤醒的电源门控制、低频时钟高频化，其中高频时钟校准低频时钟是降低睡眠态功耗的关键措施。这一系列方案的实施，使得终端在多模实际网络环境下的待机电流小于5 mA，终端的待机低功耗达到了有竞争力的商用水平。     

Narrowing the gender digital divide in Pakistan: Mobile phone ownership and female labor force participation

The unprecedented growth in access to mobile phones and smartphones has opened up new possibilities in the way people live and work. However, women in developing countries are unable to take advantage of this growth due to certain factors and socio-cultural norms that give rise to the gender digital divide. In this study, using the nationally representative Pakistan Social and Living Standards Measurement Survey (2019–2020), we investigate the gender and rural–urban (female) digital divide in a country with one of the most considerable digital divides. Furthermore, we employ an instrumental variable approach to study the effect of mobile or smartphone ownership on female labor force participation. The results indicate that institutional and sociocultural norms explain most of the ownership gap of mobile or smartphones between men and women. The instrumental variable approach demonstrates that mobile or smartphone ownership increases the participation of women in the labor force. We also find that the differences between observable characteristics, especially literacy and education, explain the rural–urban digital divide among females. Considering the importance of mobile or smartphone ownership in facilitating women's labor supply decisions, providing women with digital tools and upskilling them has wider implications for their economic well-being.     

‘Regrettable-escapism’ the negative effects of mobile app use: A retail perspective

Despite the enhanced shopping opportunities that mobile devices offer to consumers, there is a fine line between consumers enjoying the mobile shopping process and them regretting the time spent involved in it. Through the lens of Uses and Gratifications Theory (U>) and drawing on Flow Theory, this study aims to understand the effects of consumers' interactions with mobile shopping apps on their intention to reuse the app in the future, loyalty towards the brand and brand reputation. Study 1, through a questionnaire (n = 1024), provides insight into the positive and negative relationships between Utilitarian and Hedonic gratifications on intentions to reuse a retailer's mobile app, loyalty towards the b,rand and the brand's reputation. Through undertaking 24 in-depth interviews, Study 2 provides deeper insight into these relationships to uncover the complex nature of the negative effects of escapism. Findings demonstrate that the addictive nature of retailers' shopping apps lead to regrettable escapism. The flow state of mind experienced during escapism, becoming engrossed and notions of time-distortion, leave consumers with feelings of guilt and frustration due to the perceived wasted time spent on the retailer's app. Accordingly, this study advances theoretical understanding of escapism and its negative effects with ubiquitous, portable smartphones. The research provides implications for retailers and policy makers, while offering avenues for future research.     

移动运营商多代际网络演进策略

目前移动通信网络"2、3、4、5"代同时运营.移动运营商们面临着收入放缓、投资支出快速增长和现金流压力等一系列问题,必须对低代际网络进行清频退网.但退网面临着诸多阻碍,包括用户权益、物联网服务迁移和频谱分配.根据全球退网经验,总结得出低代际网络退网的基本条件,避免退网引起震荡,同时移动运营商也需要制定出合理的退网步骤,使低代际网络平滑退网.     

基于手机信令的城市道路交通状态实时预测

为准确、实时预测道路交通状态，通过分析影响交通的因素，利用决策树算法对速度和环境因素等数据进行建模，确定交通拥堵发生的规则，在此基础上结合实时的移动用户和环境因素数据对交通状态进行预测。以中国河北保定城区为例进行实验，验证了该方法的有效性。同时，研究发现，基于决策树算法进行道路交通状态预测的方法具有较好的扩展性。