On a general periodic preventive maintenance policy incorporating warranty contracts and system ageing losses

In this paper, a general periodic preventive maintenance (PM) policy for a repairable revenue-generating system is developed and studied. We define ‘ageing losses’ as the difference in revenues generated by an ideal system (no ageing) and a real system that ages over the same period of consideration. It is assumed that preventive maintenance slows the system deterioration process and therefore reduces ageing losses. The proposed model is general in the sense that (1) both the warranty contracts and system ageing losses are incorporated in the maintenance cost modeling and (2) the implementation of PM actions does not have to be strictly periodic. A cost model is developed for the buyer under two decision variables—the calendar time of the first PM and the degree of each PM. Numerical examples are then presented to show the effectiveness of the proposed model. Sensitivity analyses are further conducted to investigate the impact of model parameters on optimal solutions.     

沈阳文化创意产业发展前景研究

文化创意产业是经济发展方式转变、产业结构优化升级的重要增长点。作为老工业基地,沈阳具有丰富的工业和文化资源,但文创产业缺乏核心竞争力。文章分析了文化创意产业的实质,总结了沈阳文化创意产业发展的现状,从政府、产业角度提出未来发展的对策建议。     

营运资本能够平滑公司资本性投资吗?——基于产权性质和金融发展的经验证据

在我国依靠投资推动经济增长的发展模式中,为了防止经济大起大落需要保持投资的稳定,笔者结合公司产权性质和金融发展考察了营运资本管理在保持公司资本性投资稳定中的作用。研究结果表明,营运资本能够平滑公司资本性投资,在融资约束更为严重的民营企业这种平滑效果更为显著;金融发展弱化了营运资本平滑公司资本性投资的效果,这种弱化作用在民营企业中更为显著。笔者的研究证实企业营运资本管理的必要性,为解开民营企业在融资难的现实中依然保持不断发展的困惑提供新的研究思路,为金融发展如何缓解企业融资约束问题提供微观层面的经验证据。     

An investigation of the influence of cinema environment on advertising effectiveness

Many advertisers are looking to cinema advertising as a nontraditional medium to reach consumers. Although several scholars have examined the effectiveness of this advertising vehicle, there is a dearth of empirically grounded research on how to improve such effectiveness. This study, based on the reactance and the equity theories, is probably the first academic project investigating how to manipulate an advertising environment in a real movie theatre to maximize advertising effectiveness. Results indicated that audiences in a distractive environment held a more positive attitude toward cinema advertising in general, but those in a restrictive environment were more likely to remember the advertised brands. In addition, the provision of ticket price information improved audiences’ acceptance of cinema advertising, but did not enhance recall. Moreover, the influence of ambient scent emitted into the atmosphere in a cinema room on ad recall dissipated when movie viewers became accustomed to such stimuli. Based on these findings, theoretical discussions and recommendations for practising managers were made.     

变压器绕组温升试验及其不确定度分析

本文介绍了变压器正常加载时的温升试验过程和相关事项，并对试验数据进行变压器温升的不确定度分析。     

Innovation Performance in New Product Development Teams in China's Technology Ventures: The Role of Behavioral Integration Dimensions and Collective Efficacy

In emerging markets, technology ventures increasingly rely on new product development (NPD) teams to generate creative ideas and to mold these innovative ideas into streams of new products or services. However, little is known about how behavioral integration (a behavioral team process) and collective efficacy (a motivational team process) jointly facilitate or inhibit team innovation performance in emerging markets—especially in China, the world's largest emerging‐market setting with collectivist and high power distance cultures. Drawing on social cognitive theory and behavioral integration research, this article elucidates the relationships between behavioral integration dimensions (i.e., collaborative behavior, information exchange, and joint decision‐making) and innovation performance and also examines how collective efficacy moderates these relationships in China's NPD teams. Results from a sample of 96 NPD teams in China's technology ventures reveal that information exchange is positively associated with innovation performance. Collaborative behavior positively but marginally influences innovation performance, whereas joint decision‐making does not relate to innovation performance. Moreover, collective efficacy demonstrates an important moderating role. Specifically, both collaborative behavior and joint decision‐making are more positively associated with innovation performance when collective efficacy is higher. In contrast, information exchange is less positively associated with innovation performance when collective efficacy is higher. This study makes important theoretical contributions to the literature on team innovation and behavioral integration in emerging markets by offering a better understanding of how behavioral and motivational team processes jointly shape innovation performance in China's NPD teams. This study also extends social cognitive theory by identifying collective efficacy as a boundary condition for the overall effectiveness of behavioral integration dimensions. In particular, this study highlights the condition under which behavioral integration dimensions facilitate or inhibit NPD team innovation performance in China.     

小麦面筋含量测定影响因素分析

面筋含量是影响小麦和小麦粉品质的重要因素,面筋吸水率是小麦储存品质的重要指标。本文对小麦面筋含量测定中的关键步骤和重点环节进行了分析,探讨不同因素对试验结果造成的影响及应注意的事项,以期为各基层试验人员提供借鉴,为未来标准的修订提供参考。     

How to inhibit a partner's strong and weak forms of opportunism: Impacts of network embeddedness and bilateral TSIs

This study investigates the moderating effects of a firm's network embeddedness and a partner's transactional specific investments (TSIs) on relationships between the firm's TSIs and its partner's strong- and weak-form opportunism, and compares the efficiency among these moderator variables. The regression results suggest that (1) a firm's TSIs are positively related to partner's opportunism when network embeddedness and the partner's TSIs are relatively low; but (2) a firm's TSIs are negatively related to partner's opportunism when network embeddedness and the partner's TSIs are relatively high. Furthermore (3) network embeddedness is more effective in inhibiting partner's weak-form opportunism than in inhibiting strong-form opportunism resulting from the firm's TSIs. Finally (4) with regard to the relationship between TSIs and weak-form opportunism, the negative moderating effect of network embeddedness is greater than the negative moderating effect of partner's TSIs. This study explains reasons why conflicting views exist about the relationship between TSIs and partner's opportunism, reveals the differences in the moderating effects of network embeddedness and partner's TSIs, and makes new contributions to both transaction cost theory and embeddedness literature. It also provides, for firms involved in TSIs in a buyer–supplier relationship, insightful managerial suggestions about ways to reduce their partner's varying forms of opportunism.