Customer churn analysis: Churn determinants and mediation effects of partial defection in the Korean mobile telecommunications service industry

Retaining customers is one of the most critical challenges in the maturing mobile telecommunications service industry. Using customer transaction and billing data, this study investigates determinants of customer churn in the Korean mobile telecommunications service market. Results indicate that call quality-related factors influence customer churn; however, customers participating in membership card programs are also more likely to churn, which raises questions about program effectiveness. Furthermore, heavy users also tend to churn. In order to analyze partial and total defection, this study defines changes in a customer's status from active use (using the service on a regular basis) to non-use (deciding not to use it temporarily without having churned yet) or suspended (being suspended by the service provider) as partial defection and from active use to churn as total defection. Thus, mediating effects of a customer's partial defection on the relationship between the churn determinants and total defection are analyzed and their implications are discussed. Results indicate that some churn determinants influence customer churn, either directly or indirectly through a customer's status change, or both; therefore, a customer's status change explains the relationship between churn determinants and the probability of churn.     

新疆外向型经济发展的格局与对外开放度分析

80年代以来,新疆根据国内外市场的需求,大力发展了棉花、甜菜等种植业和纺织、制糖、石油、石油化工等工业,加大了外向型产业和外销产品的比重,建成了一批出口产品加工企业和各种类型的出口商品生产基地。特别是90年代以来,新疆沿边、沿桥开放战略的实施及“乌洽会”的召开,使外向型产业和对外贸易、经济技术合作、外资利用、对外投资、对外承包工程和劳务合作方面得到很大发展。1999年出口产品已增加到500个大类近千个品种,商品出口到五大洲的80多个国家和地区,而且出口商品结构不断完善,工业制成品已占出口总额的78．1％;对外贸易总额由1978年的0．23亿美元增长到1999年的17．65亿美元,年均增长23．0％,远超过GDP年均增长10．6％的速度;外商直接投资由1992年的1021万美元增长到1999年的6151万美元,由164家三资企业发展到447家,累计实际利用外资达25．46亿美元,涌现出一大批发展迅速的外资企业;到1998年底,新疆累计批准境外投资项目594个,合同总额2．92亿美元,对外承包工程和劳务合作项目累计145个,合同总额1．34亿美元。     

Constructing Customer‐based Museums Brand Equity Model: The Mediating Role of Brand Value

Although brand management is increasingly important to a museum manager, the existing literature on brand equity within the museum industry is sparse. This study aims to propose a museum brand equity model from the customer's perspective and to examine the mediate roles of brand value. A survey was undertaken of visitors to the National Museum of Natural Sciences in Taiwan, resulting in 367 valid responses. The results of this study provided support for the majority of the hypothesized relationships. Specifically, brand value played a full mediate role in the model. Implications and suggestions for future research are also discussed. Copyright © 2013 John Wiley & Sons, Ltd.     

城市高碳消费现象剖析——以山西为例

城市碳排放量日益增加,使得推进城市居民消费模式转变成为发展低碳经济的重要方面。目前,山西城市居民消费存在诸多高碳消费现象,原因有宏观和微观两方面。构建城市居民低碳消费模式,应宣传低碳消费理念,营造低碳消费氛围;提供有效公共服务,创造低碳消费环境;运用法律、税收等手段加强引导。     

企业生命周期及成长战略研究

企业是有生命周期的.通过对企业生命周期的定性研究,揭示出企业成长的规律;通过定量研究,即对企业死亡数据的分析处理和企业生命表的编制,了解企业的平均寿命以及死亡高发期,为企业自身制定成长战略和政府制定相应的政策提供科学依据.     

基于交易量分解的股指期货价量关系研究

利用沪深300股指期货合约IF1112的1分钟高频交易数据,按照一定的规则将交易量分解为开仓交易量、平仓交易量和换手交易量,研究股指期货交易量、三类分解交易量与对数收益率、绝对收益率之间的Granger因果关系,从更微观的视角揭示股指期货的价量关系,得到的结论是：对数收益率与交易量、平仓交易量、换手交易量之间不存在Granger因果关系,对数收益率是开仓交易量的Granger原因;绝对收益率与交易量、开仓交易量、平仓交易量、换手交易量之间均存在双向Granger因果关系,但显著性水平不同。     

我国地方政府融资的问题与对策

自2008年全球金融危机以来,各国政府纷纷出台各项融资政策,以促使经济尽早走出困境。我国也在2008年提出4万亿元经济刺激计划,成效显著,这说明我国中央政府的投资政策在恢复经济增长方面发挥了巨大的作用。然而,各级地方政府在配合中央政府实施投资计划、筹措政府项目资本金过程中,出现了很多问题,加剧了地方政府债务风险,必须采取积极的应对之策,以保证地方政府投融资过程的有序进行。