网络游戏对青少年成长影响的议题成为近几年"两会"的热点话题,也进一步引起学界的关注.为了更好地了解我国学者就此议题领域的研究现状以及发展态势,本文采用文献计量方法统计、分析网络游戏对青少年影响研究的学术论文的研究主题、理论基础与研究方法.研究发现,研究主题遵循从表象到本质、从宏观到微观、从广义到差异、从结果到原因的逻辑;理论基础从孤立运用技术社会学理论到交叉运用心理学、教育学、社会学、传播学等理论的演变逻辑;研究方法从单学科、多学科研究向交叉学科研究转变,并呈现出了从历史主义、规范主义向实证主义转变的趋势.在此基础上,提出对未来该议题研究的意见与建议.

地方政府大力引入移动政务服务是否助力"抢人大战",是中国城市高质量发展阶段值得研究的议题.基于新公共服务理论与人口迁移理论,匹配支付宝"城市服务"多源移动政务数据与中国流动人口动态监测调查数据,目的在于检验城市移动政务发展水平对增强城市流动人口定居意愿的影响.结果发现:移动政务发展水平越高,该城市流动人口定居意愿越强;控制个体特征、家庭随迁、地域流动等影响后,移动政务发展水平对流动人口定居意愿的促进作用仍然稳健;调节效应模型估计结果发现,年龄较大、已经购房、跨省流动、收入水平较高、教育水平较高的流动人口更容易感受到移动政务服务的便民性,从而提升定居意愿.研究成果在理论上有利于增进对移动政务对人口迁移作用机制的理解,在实践上有利于为政府或政策制定者通过智能技术进一步优化公共服务结构提供经验依据.

21世纪以来,我国网络游戏产业得到迅猛发展并成为了网络经济的重要增长点.与此同时,由于监管政策滞后等诸多原因,网络游戏又无异于"洪水猛兽",使很多青少年"玩物丧志".使用"中国教育追踪调查"2014年—2015年数据,探讨我国初中生玩游戏状况及其对教育期望的影响.研究发现,初中生玩网络游戏现象非常普遍;多层有序分类模型检验了玩游戏的强度对学生的教育期望存在的显著负向影响;分层模型检验了个体差异的调节效应,同伴辍学、学业成绩、亲子关系和学校分层强化了玩网络游戏对学生教育期望的负面影响,当同伴辍学人数越多、学业成绩和亲子关系越差、学校等级较低,其负面影响越强.此外,采用工具变量方法有效地解决了反向因果问题.由于学生自我教育期望是个体学业成就与国家人才培养体系的重要影响因素,玩游戏对教育期望的影响不容忽视.而出台合理的监管政策降低学生玩游戏时间,是新时代办好人民满意的教育的亟需措施.

In the process of urban expansion and development, "asset-heavy and invisible" infrastructure construction is playing an increasingly important role, which also makes people realize the importance of the diffusion of policies that need collective institutional action among Chinese cities. We examine what drives the diffusion of the new underground utility tunnel (UUT) policy with an analysis of 242 prefecture-level cities in China. The results show that horizontal competition, central government pressure and incentives, international resource utilization and image pressure, urban economic development, and administrative rank are positively and significantly associated with policy diffusion, whereas urbanization, population density, and existing underground pipelines are not significant.

China’s rapid urbanisation in the past 30 years has been a prominent issue all over the world. Few studies have elaborated the urbanization in China, especially the overly speedy building intensity growth in contemporary China from the perspective of local decision makers. This study aims to explain the local decision-making driving force of the rapid growth of the degree of building and land use by analysing the interaction between local decision makers’ turnover and the degree of building and land use. The Secretaries of Municipal Party Committees (SMPCs) have been selected as the representatives of the decision makers of Chinese local governments while the newly increased floor area has been selected as an indicator of the degree of building and land use. On the basis of the panel data of 35 large- and medium-sized Chinese cities from 2000 to 2014, Stata 14.0 has been applied to implement a regression analysis. The research findings show that any turnover of the Secretaries of Municipal Party Committees (SMPCs) may create new floor area. The causal mechanisms hypotheses have also been proven. Generally, the SMPCs are motivated by a need to promote urban growth, and especially, when the SMPCs hold power by the same-ranking lateral transferring or same-ranking vertical dispatch in the municipality, its floor area is more likely to increase. Furthermore, the more the floor area increases, the greater the possibility of promotion will get. These findings could be an explanation for China’s high-speed spatial urbanization from a public administration point of view and a practical understanding of the Chinese decision-making mechanism in urban development.

自1996年以来,中国的快速城市化进程引起了世界的广泛关注.就城市建设强度而言,已有研究主要关注城市建设强度与城市人居环境、交通承载力、生态环境等方面的相互制约关系,但对于我国城市空间强度加速增加的决策推动力还缺乏解释.从公共管理学的视角,通过分析我国城市发展竞争与城市建设强度之间的关系,以解释相应的政策决策动因.选用地方城市决策者更换来反映城市发展竞争,选用城市新增建筑面积来测度城市建设强度增长,基于全国35个大中型城市在2000～2014年(城市化第四波)的面板数据构建实证分析计量模型,运用Stata14.0软件进行回归分析.研究结果发现:城市决策者更换导致辖区城市新增建筑面积增加;虽然存在年龄差异以及异地交流经验差异,但大中型城市的决策者普遍具有大力推动城市建设强度的动力.