中国城镇化和水资源利用的协调性分析*——基于熵变方程法和状态协调度函数

［目的］通过研究2007—2016年城镇化和水资源利用的协调性,为两者协调发展提供政策建议。［方法］利用熵变方程法和状态协调度函数实证分析。［结果］(1)基于熵变方程法得到的相对协调度结果与利用状态协调度函数测算的静态协调度结果基本一致,目前我国城镇化与水资源利用逼近或处于协调发展状态,但在2009—2011年两者动态协调度偏离了协调发展轨迹。(2)3类城市中地级以上城市城镇化与水资源利用目前处于协调发展状态,两者动态协调度一直处于协调发展的轨迹上,地级市和县级市城镇化与水资源利用则处于基本协调状态,尚未达到协调状态,即目前城镇化发展的同时,水资源利用情况出现了小幅恶化,且2类城市动态协调度分别在2009—2012年和2009—2011年偏离了协调发展轨迹。［结论］我国尤其是地级市和县级市需要统筹城镇化发展与水资源利用,既需提升城镇化质量,又需进一步贯彻执行水资源管理法规,捋顺其管理体制,完善水资源价格形成机制以及污水处理收费制度,构建多渠道的水资源循环利用机制,达到城镇化进程中水资源可持续利用。     

Experiential learning and its effectiveness from the perceptions of hospitality students

This work aims to review the implementation situation of experiential learning (EL) in China’s hospitality education and explore the perceptions of students on the effectiveness of the adopted EL methods. Observations and focus group discussions are conducted in three vocational colleges and three universities in China. The study reveals that EL activities are widely utilized in China’s hospitality education. Generally, students state that EL is more effective than traditional classroom learning. Nonetheless, they consider some EL activities as being ineffectively implemented. Several suggestions are given in this paper to provide support to hospitality educators for improving the utilization of EL methods and facilitate student learning. Furthermore, unique EL methods that are not documented in literature are adopted in China’s hospitality education.     

Family ostracism and proactive customer service performance: An explanation from conservation of resources theory

Asia Pacific Journal of Management - Despite the burgeoning interest in work-family conflict, little is known about how family stressors influences employees’ attitudes and behaviors in the...     

审计委员会与审计总监任期重叠影响公司盈余质量吗

本文以审计委员会和内部审计总监任期重叠为视角,采用2008-2018年上市公司数据,考察两者任期重叠时间长短对公司盈余质量的影响,研究发现:审计委员会和审计总监的任期重叠时间越长,公司盈余质量越高;并且,这一正向关系在审计委员会信息获取成本和公司股权制衡度越高时更显著;进一步研究发现,审计委员会特征、审计总监的财务专长和内部审计部门权威性以及外部审计任期和行业专长对两者关系的影响不显著,但审计总监在内部审计部门工作年限对两者关系则有显著增量影响,且签字会计师变更会削弱任期重叠的的正面作用.本文研究结论为公司内部治理机构之间相互长期合作的重要性和必要性提供了经验证据,对如何完善内部治理和监督具有一定启示作用.     

股票杠杆交易行为及收益分析——基于融资融券交易数据

作为重要金融工具,股票杠杆交易对于资本市场效率的提高具有重要意义.本文通过融资融券的交易数据研究中国股票杠杆交易行为及收益情况,从信息披露、盈余质量及公司估值三个层面,本文发现参与融资融券的杠杆交易者更多选择信息披露质量差、盈余质量低的公司,且交易的股票估值偏高.通过构建投资组合,我们发现这种杠杆交易行为获得超额收益.本文进一步从业绩预告和证监会处罚两个视角进行检验,发现杠杆交易者可能是通过内幕信息获得收益.本文打开杠杆交易的黑箱,为监管层监管杠杆交易的合理性和必要性提供了依据,也为在打造规范、透明、有活力的资本市场过程中,如何让金融工具更好地服务于资本市场提供了参考.     

Exploring factors which motivate older consumers’ self-service technologies (SSTs) adoption

Although the proportion of the older population is growing, the majority of research on technology adoption behaviour, such as the adoption of self-service technologies (SSTs), tends to focus on younger consumers. To fill this gap, this study is designed to explore factors which motivate older consumers’ adoption of SSTs by applying Gatignon and Robertson’s diffusion process model. Responses were collected from 104 respondents who were aged 55 or over and who had used self-checkouts in the past. The data were analysed using partial least squares path modelling with SmartPLS 3.0 software. The results indicate that perceptions of SST characteristics, including usefulness, enjoyment, and control, are indirect antecedents of older consumers’ SST adoption through service quality and/or perceived risk. Another key predictor of older consumers’ adoption of SST is prior usage experience with SSTs, which strongly influences usefulness and compatibility. Findings from this study contribute to the literature because little research has explored what drives older consumers to use SSTs.     

Adjusted Pearson Chi-Square feature screening for multi-classification with ultrahigh dimensional data

Huang et al. (J Bus Econ Stat 32:237–244, 2014) first proposed a Pearson Chi-Square based feature screening procedure tailored to multi-classification problem with ultrahigh dimensional categorical covariates, which is a common problem in practice but has seldom been discussed in the literature. However, their work establishes the sure screening property only in a limited setting. Moreover, the p value based adjustments when the number of categories involved by each covariate is different do not work well in several practical situations. In this paper, we propose an adjusted Pearson Chi-Square feature screening procedure and a modified method for tuning parameter selection. Theoretically, we establish the sure screening property of the proposed method in general settings. Empirically, the proposed method is more successful than Pearson Chi-Square feature screening in handling non-equal numbers of covariate categories in finite samples. Results of three simulation studies and one real data analysis are presented. Our work together with Huang et al. (J Bus Econ Stat 32:237–244, 2014) establishes a solid theoretical foundation and empirical evidence for the family of Pearson Chi-Square based feature screening methods.     

基于DEA模型的青岛市休闲农业效率评价*——以青岛市休闲农业与乡村旅游示范点为例

[目的]以青岛市休闲农业为研究对象,分析青岛市休闲农业运行效率,为推动青岛市休闲农业发展提供建议。[方法]以青岛市15个休闲农业与乡村旅游示范点的调研数据为基础,构建了青岛市休闲农业效率评价指标体系,运用数据包络分析方法对青岛市休闲农业效率进行评价。[结果]青岛市休闲农业的综合效率相对较低,综合效率平均值为0. 577,仅达到最优水平的57. 7%,15个示范点中只有5个示范点的综合效率达到DEA有效。青岛市休闲农业的纯技术效率不高,纯技术效率平均值为0. 713,有8个示范点的纯技术效率未达到最优。青岛市休闲农业的规模效率一般,规模效率平均值为0. 774,规模报酬不变的示范点有6个,数量最多。在15个休闲农业示范点中,有8个示范点存在土地和劳动力投入冗余问题。[结论]青岛市休闲农业综合效率与纯技术效率较低;规模效率一般,大部分示范点处于规模报酬不变阶段;投入冗余问题突出。     

Inbound openness and its impact on innovation performance: an agent-based and simulation approach

A firm’s superior innovation performance is embodied not only by its average innovation performance but also by the likelihood of extremely high innovative outcomes. The former benchmark is associated with the mean of the performance distribution, while the latter is associated with the variance, both of which play an important role in instructing the achievement of superior innovation performance. In this paper, we explored how inbound open innovation impacts superior innovation performance by considering both the average and variance effects of inbound openness. We conducted agent-based modeling and simulation research to untangle the relationship between inbound openness and superior innovation performance and how the relationship is moderated by the disruptiveness of industrial innovation. We found that inbound openness significantly influences both the benchmarks. Specifically, search breadth positively influences the likelihood of extremely high innovative outcomes in general, whereas search depth positively influences average innovation performance; and the strength of these effects varies under different disruptiveness.     

Incentives for knowledge sharing: impact of organisational culture and information technology

This research presents and examines an analytical model of knowledge management in which organisational culture dynamically improves with knowledge-sharing and learning activities within organisations. We investigate the effects of organisational incentives and the level of information technology on the motivation of knowledge sharing. We derive a linear incentive reward structure for knowledge sharing under both homogeneous and heterogeneous conditions. In addition, we show how the organisational culture and the optimum linear sharing reward change with several crucial factors, and summarise three sets of methods (strong IT support, congruent organisational culture, and effective employee assessment) to complement the best linear incentive. Our research provides valuable insights for practitioners in terms of implementing knowledge-management initiatives.