长江经济带生态保护效率与科技服务业发展效率时空关联分析

建立超效率DEA模型并运用视窗分析测算2010-2017年长江经济带11个省市生态保护效率与科技服务业发展效率，通过空间计量模型分析后者对前者的影响。结果表明：科研技术服务业效率对当地及周边地区的生态保护效率具有正向影响；科技资本服务业效率对当地生态保护效率具有正向影响，但对其周边地区有抑制效应；科技宣传服务业未对生态保护效率产生显著影响。据此，提出长江经济带通过提高科技服务业效率改进生态保护效率的对策。     

Relationship between foreign capital flows,domestic investment and savings in the SADC region

The importance of foreign capital in the domestic economy cannot be underestimated as it bridges the gap between domestic capital demand and supply. Given this background the paper studies the relationship between the different types of foreign capital flows in the Southern Africa Development Region (SADC) region – foreign direct investment (FDI), remittances, cross border bank flows (CBF), overseas development assistance (ODA) – and domestic savings and investment, employing the panel cointegration test and the dynamic ordinary least squares method (DOLS). The empirical results reveal that there is a strong positive relationship between domestic investment and domestic savings, FDI and remittances. These findings indicate that FDI remittances help in overcoming the limits on the domestic capital formation in the SADC region through permitting a rate of investment which is in excess of that which can be generated by domestic savings. Important policy implications on attracting foreign capital flows are discussed in the paper.     

Enterprise systems’ life cycle in pursuit of resilient smart factory for emerging aircraft industry: a synthesis of Critical Success Factors’(CSFs), theory,knowledge gaps,and implications

The research aims to investigate business value critical success factors (CSFs) of enterprise systems (ES) through their life cycle in pursuit of resilient smart factory for emerging aircraft industry. This article provides an extensive literature analysis of past 22 years based on conscientious criteria of authors: (i) who have published strategic content relevant to CSFs, (ii) received more than 300 citations and (iii) concurrently published two or more papers relevant to ES CSFs. The most cited strategic CSFs were termed as classical CSFs. The 22 CSFs were identified, validated and synthesised for better understanding of success across life cycle by aircraft industry experts. The top 10 empirically verified CSFs have numerous differences with past generic classical CSFs. This article canvases real insights of two distinct views: process and variance approaches of the ES CSFs. The process approach, which is a neglected research area, facilitates the researchers for identification of ES life cycle process coupled with a view of resource deployment when it is needed the most. While the variance approach facilitates practitioners and researchers in finding out which resource (CSF) is relatively more important. The significant findings for ES life cycle can help the practitioners and researchers to make rational decisions throughout the ES life cycle.     

Key drivers of passengers' overall satisfaction at klia2 terminal

The purpose of this study is to examine the airport service quality dimensions based on the ASQ survey and investigate the best predictor for overall satisfaction. The context of this study is the klia2 terminal passengers, which are predominantly users of the low-cost carriers at Kuala Lumpur International Airport. Secondary data obtained from the airport operator on the 2016 ASQ survey for the klia2 terminal was analysed using the PLS-SEM method. The grouping and impact of the thirty-three service quality elements from the ASQ survey were tested against the overall satisfaction element. The findings indicated that twenty-two out of the thirty-three elements were valid measures for the klia2 terminal users which forms the eight dimensions i.e. access, airport environment, airport facilities, arrival services, check-in, finding your way, passport and security. Airport environment was found as the best predictor in determining passengers’ overall satisfaction at klia2 terminal and should be given particular focus by the airport operator for continuous improvements.     

制造企业服务化转型价值效应研究

以2011-2015年制造业上市公司为研究对象，运用实证研究方法，检验了服务化程度对企业价值的影响，以及产业竞争程度对服务化程度与企业价值关系的调节作用。结果表明：服务化程度与企业价值之间呈倒U型关系。当服务化程度较低时，服务化转型会促进企业价值提升；服务化程度达到临界值（37%左右）后，服务化转型会降低企业价值。产业竞争程度对服务化程度与企业价值关系具有调节作用，当前产业竞争程度的提高会降低服务化转型价值效用，而潜在竞争威胁程度的提升会促进服务化转型价值效用。     

Service innovation in the hotel industry: culture,behavior, performance

The aim of this study is to focus on the service innovation culture (SIC) in the formation of frontline employees’ (FLE) innovation performance based on two fit theories. More specifically, the research evaluates and examines the mediating role of challenge-oriented citizenship behavior (COCB) and charged behavior in the aforementioned relationship. To test the hypotheses, two-step structural equation modeling with bootstrapping estimation was conducted in AMOS, using data from 215 full-time frontline hotel employees over a one-month time period. This study establishes that the development of a SIC is positively related to the innovation performance of FLE. Likewise, the results indicate that there is a partially mediating role for the COCB and expanded charged behavior (encompassing vitality and creative self-efficacy) of FLE in the relationship between SIC and innovation performance. The findings of this study highlight the need for managers to incorporate a secure and trusting work environment so FLE will eagerly participate in the service innovation process by voicing their novel ideas. Managers can also consider the significance of the employee selection procedures and take advantage of employing university graduate for frontline service jobs.     

Risk-managed industry momentum and momentum crashes

This paper investigates Barroso and Santa-Clara’s [J. Financ. Econ., 2008, 116, 111–120] risk-managed momentum strategy in an industry momentum setting. We investigate several traditional momentum strategies including that recently proposed by Novy-Marx [J. Financ. Econ., 2012, 103, 429–453]. We moreover examine the impact of different variance forecast horizons on average pay-offs and also Daniel and Moskowitz’s [J. Financ. Econ., 2016, 122, 221–247] optionality effects. Our results show in general that neither plain industry momentum strategies nor the risk-managed industry momentum strategies are subject to optionality effects, implying that these strategies have no time-varying beta. Moreover, the benefits of risk management are robust across volatility estimators, momentum strategies and subsamples. Finally, the ‘echo effect’ in industries is not robust in subsamples as the strategy works only during the most recent subsample.     

基于数据包络(DEA)分析的京津冀地区环境绩效评估研究

提高资源环境绩效是区域生态环境治理的核心与关键。在构建环境绩效评估指标体系的基础上，运用数据包络分析模型（DEA）测度并分析2005-2015年京津冀地区静态环境绩效水平。利用Malmquist指数动态分析法将环境绩效分解为技术效率变化指数和技术进步指数，并探讨分解指标对环境绩效的相对贡献。结果显示：京津冀地区环境治理投入与产出水平均呈现逐年上升趋势；北京和天津的总体环境绩效水平要远高于河北，2005-2011年京津冀地区的环境绩效水平排序为北京、天津、河北,2012-2015年京津冀地区的环境绩效水平排序为天津、北京、河北（2013年除外）。河北省环境绩效水平较低的主要制约因素是技术进步缓慢与全要素生产率偏低。Malmquist指数呈现出一定的波性，这主要是由技术变化指标波动所致。最后，就如何提升京津冀地区环境绩效水平，提出相关对策建议。     

能源效率、环境污染与中国经济发展方式转变

以往研究虽然关注了能源效率与经济发展之间的关系,但却忽略了能源利用过程中环境污染的改善对经济发展方式转变的影响。本文将环境变量纳入能源效率分析框架内,采用EBM-DEA模型测算了中国各地区能源效率,并利用动态空间面板模型,实证考察了环境约束下的能源效率对中国经济发展方式转变的影响。研究结果显示,中国经济发展方式具有明显的空间相关性和路径依赖性;与未考虑环境污染相比,环境约束下的能源效率对经济发展方式转变的影响更为明显,这也在一定程度上表明,如果不考虑能源效率提升的环境污染改善效应,将会低估其对经济发展方式转变的影响。本文结论为提升中国能源效率水平,加快经济发展方式转变提供政策启示。     

Do development projects crowd-out private sector activities? Evidence from contract farming participation in Northern Ghana

Contract farming (CF) is attractive as a possible private sector-led strategy for improving market coordination and smallholder farmers’ welfare. At the same time, governmental and non-governmental development projects aimed at improving farmers’ welfare continue to be organized. It is not uncommon for CF activities and development projects to take place in the same communities. Yet so far there is no evidence on how development projects affect CF activities. We examine factors affecting entry in and exit from different maize CF schemes in Northern Ghana, and focus specifically on the role of development projects. We find that the presence of agricultural development projects in the community is associated with lower scheme entry, but this not the case for non-agricultural projects. CF exit is more strongly associated with maize projects, but not significantly with non-maize or non-agricultural projects. Thus, our findings do not support concerns of a general moral hazard problem arising from the presence of any development project, but indicate possible negative associations of more closely related agricultural or maize projects with maize CF participation.