开放存取期刊质量评价方法与相关问题思考

近年来开放存取出版模式因其信息传播的即时性与学术资源的开放性得到了业界广泛关注,其质量评价也成为本领域研究热点。在此背景下,对开放存取期刊质量的同行审议评价法、引文分析评价法和网络计量评价法的利弊作了阐述,提出加强和改进评价工作的对策。     

Optimal Time-of-use Access Charges

This paper examines the setting of optimal time-of-use access charges in a deregulated network industry environment. Firms, which may include the incumbent, compete in the final retail market. The regulator sets an access fee for use of the essential facility, allowing the incumbent to recover fixed costs. If the retail market is perfectly competitive the optimal access charge varies with time-of-use according to the Ramsey–Boiteux elasticity rule. However, with downstream market power the regulator needs to correct retail price distortion, as well as recover fixed costs efficiently. As a result, the regulators initial impulse to set higher access charges during peak periods may be reinforced, moderated or even reversed — and optimal access charges diverge from a Ramsey–Boiteux pattern.I would like to thank John Panzar and Julian Wright for helpful comments. The helpful and detailed remarks of an anonymous referee have greatly improved this paper and are gratefully acknowledged.     

内部审计质量问题研究

内部审计质量问题,已经逐渐成为发展内部审计的瓶颈,这向内部审计管理部门和内部审计人员提出了挑战.通过分析内部审计质量问题产生的原因,提出提高内部审计质量的四种方法,包括建立内部审计质量控制系统、注重控制环节的连接、注重控制功能的延伸和加强控制的成本效益考虑.     

基于装配尺寸链应用的研究

归纳总结装配尺寸链在机械产品设计、制造和维修过程中的合理应用.针对保证装配精度的不同方法,指出在机械产品设计中用装配尺寸链确定组成环尺寸公差时应注意的问题,用实例说明了在机械产品的装配、修配及维修过程中尺寸链的分析方法.     

Trade Policy and Natural Resource Use: The Case for a Quantitative Restriction

This paper presents a simple way for countries to reap the benefits of trade liberalization without exacerbating problems of overexploitation of natural resources. In the context of a Ricardo–Viner dynamic trade model, it is shown that when a binding quantitative restriction regulates extraction of a natural resource, free trade is optimal. This is true even if the quantitative restriction is not optimal. In contrast, in the presence of a suboptimal tax (including a zero tax in the special case of open access) on the use of natural resources, trade liberalization is not necessarily welfare improving.     

弱势群体的医保视角:我国药品流通领域缺陷及对国外的借鉴

弱势群体对社会福利的需求最为迫切,也是我国基本医疗保险制度最不可忽视的群体。但我国目前的药品流通领域弊端对他们享受医保带来了负面压力。本文针对我国现状,结合国外药品流通领域的相关情况,提出了一些完善我国药品流通领域的建议。     

论《名古屋议定书》与TRIPS之冲突关系及其协调——以遗传资源的适当获取规则与专利规则之关系为切入点

因遗传资源获取和惠益分享制度影响到了专利保护,《生物多样性公约》与TRIPS之间出现了紧张关系。《名古屋议定书》中的遗传资源适当获取规则更进一步与TRIPS专利规则发生冲突。国际社会有必要重视这种冲突并积极寻求解决方案。从维护自身的遗传资源利益出发,中国也有必要积极推进TRIPS的修订,以协调两者之间的关系。     

Consumer adoption of access-based product-service systems: The influence of duration of use and type of product

Access-based product-service systems (AB-PSS) are business models that can potentially decouple the satisfaction of consumer needs from environmental impacts. Hence, they have been promoted for the circular economy. Their sustainability potential has not yet been realised because consumer adoption is lagging. Although this challenge has been studied for two decades, knowledge to identify and address AB-PSS adoption barriers that matter to consumers is lacking. We hypothesise that the duration of use, the time a consumer obtains exclusive access to a specific product (short-term vs. long-term) and the type of product (bicycles vs. clothing) moderate the importance of AB-PSS adoption barriers to consumers. We compared several adoption barriers across four AB-PSS and found that the duration of use and the type of product significantly moderated the importance of some AB-PSS adoption barriers. More specifically, the Effort to access has a higher influence on consumer preference for short-term AB-PSS, whereas Product quality has a higher influence on consumer preference for long-term AB-PSS. We also found that Effort to access and Product characteristics were more important for bicycle AB-PSS, whereas Contamination and Product quality were more important for clothing AB-PSS. These insights help companies to identify and design out key AB-PSS consumer adoption barriers.     

Private conversation matters: Evidence from sell-side analyst reports after private meetings

Using a manually collected database of Shenzhen Stock Exchange listed firms from 2013 to 2015, we examine the key characteristics of firms’ private meetings and their effects on analysts’ reports. We show that the presence of managers, a smaller number of meeting participants, and discussing questions in more categories are associated with more accurate and less optimistic short-term forecasts during the hosting periods following the meeting. Our results suggest that private and small group conversations between managers and analysts can be significant information channels in these meetings. In particular, we show that the short-term earnings forecast is more accurate and less optimistic during hosting periods after these meetings in general, but recommendations are still biased upwardly. These results are robust regardless of whether the analyst attend meetings or whether the meeting is hold onsite, providing further evidence that private conversations with managers may be a more effective information channel than observing firms’ operations during site visits.     

吉林省小额贷款公司接入征信系统路径研究

随着业务规模的不断扩张,小额贷款公司迫切需要接入人民银行征信系统,一方面可以提高客户违约成本,形成还款约束,另一方面有利于避免多头授信的情况。结合吉林省的实际进行研究,接入征信系统对整个小额贷款行业是至关重要的,但由于条件制约,这项3-作实质性进展并不十分显著,主要是路径选择难以确定。