基于Q币的网络虚拟币属性与影响分析

Q币目前并不是货币,但具有一定的货币属性与功能,如有限度的流通性,相对的价值尺度职能,一定程度的支付手段等。就Q币的特征而言,Q币与法定货币之间存在着很大的差异,Q币不能代替人民币的作用。但虚拟币的无限创造能力成为潜在的不稳定因素,中央银行难以有效控制货币供给,可能危及我国的金融安全。我国应严厉打击倒卖Q币的行为,加强对Q币等网络虚拟币的金融监管,建立更安全便捷的支付渠道。     

EU Membership and FDI: Is There an Endogenous Credibility Effect?

ABSTRACT

The European sovereign debt crisis has increased the uncertainty regarding the benefits and costs of membership in the Economic and Monetary Union. In this article, we decided not to propose a general model but to focus on one of the important components of the European financial integration. In particular, we develop a structural gravity model, influenced by some very recent theoretical and econometric advancements. This new structural gravity approach provides needed theoretical underpinnings as well as strong support for the econometric estimation of gravity models.     

弹群组网应用与关键技术

随着弹药技术及网络技术的快速发展,弹群组网作战系统作为未来作战体系中的重要角色受到了世界各国的高度关注。简要概述了国外弹群组网作战系统的发展趋势,并对弹群组网作战能力进行了定性分析;在此基础上,建立了基于多层面、多子网、同构与异构并存、有中心与无中心网络的弹群组网混合体系架构,并对其功能及特点进行了详细分析;对弹群组网作战系统亟待解决的关键技术进行了梳理,为其工程应用提供了理论参考。     

使用深度学习的社交物联网信任预测模型

社交物联网是社交网络概念在物联网中整合后兴起的一个蓬勃发展的研究领域。提出了一种适用于社交物联网网络的改进型节点级信任模型,并通过与其他信任模型的对比仿真实验证明在恶意节点的攻击下,提出的模型拥有更好的稳定性和适用性,总体波动较小。同时,针对实际社交物联网网络中新加入网络的陌生节点可能遇到的网络延迟影响信任值评估的问题,在改进型节点级信任模型的基础上进一步使用了深度学习模型对其进行信任值预测。仿真证明,使用深度学习预测后模型的系统性能明显优于不使用深度学习的模型,成功交互率提升约1.8%。     

Utilizing the access value of customers

Customers are critical resources for the success of any business, not only because they bring in sales and profits directly, but also because of their access value in a world that is becoming increasingly interconnected. However, the mechanisms by which the customer access value may be exploited and the implication for management has not been well understood. Access value can be defined as the worth of utilizing patrons for further marketing and sales of value-added or third party products. The access value, which mainly results from the aggregation of the customer base and customer data, is essentially a corporation's internalized asset. This article shows that the size of the customer base and the extent of engagement have a significant impact on the customer access value. To develop and gain the benefits of customer access value, traditional business models often need to be transformed: firms and platforms should provide free or subsidized products to attract people and then embed value-added products to make money. The success of the new business model depends on not only the right pricing and product strategies, but also an embedding strategy.     

碳信用货币化分析——以零碳信用置换平台为例

当前以美元为代表的牙买加国际货币体系受到了质疑,建立超越主权的货币体系呼声渐涨,而碳排放权之类的碳信用获得新货币体系的提名。本文在长期跟踪碳金融研究成果的基础上,结合国内最新的碳信用实践形式---零碳信用置换平台,评析零碳信用置换平台运行实践中突出展现的碳信用各种符合货币要求的特质,对碳信用货币化的可能性给予肯定。同时将零碳信用置换平台与清洁发展机制（CDM）和欧洲碳排放交易体系（ETS）等现行主流碳交易模式进行对比,分析得出碳信用货币化存在相对价格的发行统一困境、币值稳定性的困境和汇率决定困境等阻碍,最后对部分困境的解决提出一些建议。     

摆脱“美元陷阱”路径论析

经济活动严重依赖于美元致使我国对外贸易和国际储备安全受制于美国的战略黑箱,宏观调控的独立性受到掣肘,汇率政策面临二难选择。出于自身狭隘利益的考量,美国当局不可能自愿改变我行我素的行事风格,所以跳出“美元陷阱”不能奢望于美国当局的良心发现,只有唯一路径———“去美元化”———在美元之外构建一种新的国际支付手段为我所用。构建这种新的国际支付手段的应然路径是联合主要大宗矿产资源大国构建共同货币。     

Competition,firm size and returns to skills: Evidence from currency shocks and market liberalisations

We investigate the impact of product market competition on returns to skills in Italy using a longitudinal dataset on individual working histories. This impact is identified using three exogenous shocks affecting competition: the unforeseen devaluation of the Lira in 1992, its return to a fixed exchange regime in 1996 and the market liberalisation in the utility and transport sectors in the late 1990s–early 2000s. We analyse how firm heterogeneity and shocks of different types and signs affect the impact of competition on skill premia. We find that opposite shocks have opposite effects: an increase (resp. decrease) in international competition increases (resp. decreases) skill premia. Moreover, international shocks have greater effects on medium sized firms, while domestic liberalisation shocks have greater effects on large incumbents.     

基于权值优化的认知WiMax信号协同识别

传统的正交频分复用（OFDM）系统识别算法只能识别出接收信号是否为基于全球微波互联接入技术（WiMax）的OFDM信号,但无法判断该信号是认知信号,并且在复杂电磁环境下识别正确率低。为此,提出了一种协同识别认知WiMax无线网络OFDM信号的算法。该算法首先利用OFDM信号的循环自相关特性估计信号的有用符号时间,并通过估计各协同感知节点的信噪比对时间参数的估计值进行加权,得到有用符号时间的协同估计值,进而判断接收信号是否为基于WiMax系统的OFDM信号;再通过自私攻击策略,实现对OFDM信号是否是认知WiMax信号的判别,为进一步研究认知WiMax网络节点定位技术奠定了基础。仿真结果表明,与非协同识别算法相比,提出的协同识别算法在多径和低信噪比条件下具有更高的识别率。     

理解离岸金融市场概念应强调的几个方面

对概念的正确理解是其他一切研究与讨论的基石与前提。就离岸金融市场而言，目前没有一个一致公认的定义，许多学者从不同的侧重面给出了各自的解释，其中不乏个别文献甚至有误导人们的倾向，本文结合当前离岸金融市场的现状，全方位诠释了离岸金融市场这个概念。