我国国际资本流动：直接投资 与非直接投资影响因素的比较研究

本文基于向量误差修正模型对1982-2010年期间我国直接投资类、间接投资类（含其他投资）、错误与遗漏及投资收益类三种类型国际资本流动的影响因素进行了实证研究。实证检验结果表明：在长期,我国三类国际资本流动与人民币对美元的实际汇率升贴水年率之间为负向变动关系,与中美利差、中美通胀之差、我国实际经济增长及人民币对美元的实际汇率预期之间为正向变动关系;在短期,三类国际资本流动与上述影响因素之间关系并非一致;实际经济增长是我国直接投资类国际资本流动的主要原因,人民币对美元的实际汇率预期是我国非直接投资国际资本流动的主要原因。     

东道国外资征税权与间接征收关系辨析

伴随间接征收概念的不断扩张,作为东道国合理管制权力的征税权也逐渐被投资者质疑从而提起征收之诉而要求补偿。过度的征税、歧视性的征税以及逾越善意本质的征税有可能被视为间接征收。《北美自由贸易协定》、《欧洲人权条约》等极力倡导保护私人投资权利的国际条约在其仲裁与司法实践中却将天平倾斜于东道国,设置了争端解决的前置程序或形成了实践中的认定标准。我国外资征税体制虽然发生了重要的变革,但无论从税率的设置还是实施的普遍性和效果来看都不构成对外资的间接征收。     

基于BP神经网络的征地区片综合地价评估

文章提出了征地区片综合地价的BP神经网络系统的基本构造,并在充分考虑城市规划和生活水平对征地区片土地价格影响的基础上,对神经网络的评估系统进行了设计.给出了征地区片综合地价评估的指标体系及特征指标的量化计算公式.以雅安市雨城区最新的征地区片综合地价为基础,利用改进的BP神经网络模型对它们进行了训练和模拟,取得了良好的模拟结果,证明了ANN法用来测算征地区片综合地价的可行性和先进性.     

中日韩三国的公允价值计量属性比较研究——基于财务会计概念框架角度

作者在研究过程中,综述了公允价值计量属性的相关理论.在比较中日韩三国财务会计概念框架中,作者在公允价值计量属性表述的基础上,分析了中日韩三国之间的差异,提出中日韩会计准则制定机构在公允价值研究领域存在着区域性合作的共同课题,并就加强合作的路径安排提出了笔者的构想.     

A network experiment in continuous time: The influence of link costs

In recent work on non-cooperative network formation star-shaped networks play an important role. In a particular theoretical model of Bala and Goyal (2000) center-sponsored stars are the only strict Nash networks. In testing this theoretical model, Falk and Kosfeld (2003) do not find experimental evidence that players select the center-sponsored star. Based on a slight modification of Bala and Goyal’s model, we design a network formation experiment in which, depending on link costs, periphery-sponsored stars and the empty network are the only strict Nash networks. We observe that almost all groups not only reach a strict Nash network once but also switch the center player in periphery-sponsored stars several times. The main innovation in our experiment is to use a continuous time framework which we believe to be a more realistic setting to study behavior in network formation situations and which makes coordination on stars much easier than simultaneous strategy adaptation in discrete time. Electronic Supplementary Material Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s10683-006-9125-1. JEL Classification C72 · C92 · D81     

International Experience,China’s Development and Prospect of Carbon Market Construction

Carbon market, which is capable of scientific quantifying and marked-based pricing of carbon emission, is an important way for countries to achieve the target of carbon emission reduction. The global carbon market, after more than ten years of development, has developed a mature mechanism. China started the trial of carbon market in 2011. After ten years of exploration, the national carbon trading market was officially launched in mid-July 2021. Against the backdrop of carbon neutrality, the national carbon market will shoulder a greater mission of carbon emission reduction and speed up its financialization and internationalization. However, it should take a dialectical attitude toward the opportunities and risks of carbon market financialization. In the future, China can promote the development of carbon market through efforts to develop market participants, clarify the attributes of carbon finance, prevent potential risks of carbon finance, improve the connection mechanism with the international carbon market, and innovate carbon finance services.     

A simple model of homophily in social networks

Biases in meeting opportunities have been recently shown to play a key role for the emergence of homophily in social networks (see Currarini et al., 2009). The aim of this paper is to provide a simple microfoundation of these biases in a model where the size and type-composition of the meeting pools are shaped by agents׳ socialization decisions. In particular, agents either inbreed (direct search only to similar types) or outbreed (direct search to population at large). When outbreeding is costly, this is shown to induce stark equilibrium behavior of a threshold type: agents “inbreed” (i.e. mostly meet their own type) if, and only if, their group is above certain size. We show that this threshold equilibrium generates patterns of in-group and cross-group ties that are consistent with empirical evidence of homophily in two paradigmatic instances: high school friendships and interethnic marriages.     

Fostering entrepreneurship in distressed urban neighbourhoods

During the last decade entrepreneurship research has focused increasingly on spatial aspects of entrepreneurship. Many systematic studies have been conducted on the national or regional scale, although other geographical scales—cities and their single districts and neighbourhoods—have drawn less attention. In this context, the paper aims, firstly, at identifying spatial success factors of entrepreneurial activities and their promotion at the local scale. Secondly, the paper aims at contributing to the development of a conceptual frame at the interface of entrepreneurship research, urban and economic geography, and regional economics. Empirically, the paper draws on results from explorative case studies in two distressed urban areas.     

垂直专业化:经济全球化中的贸易和生产模式

垂直专业化的生产和贸易是当今经济全球化中最重要的现象之一。中国作为一个大国和发展中国家,垂直专业化的程度相对较高。随着中国加入WTO,跨国公司的垂直专业化战略模式将深入到中国的每一个角落,渗透在人们的生产生活中,对此,中国企业必须有自己的应对方案。     

Forecasting and Arbitrage of the Nikkei Stock Index Futures: An Application of Backpropagation Networks

A neural network model was used in forecasting the basis in SIMEX Nikkei Stock Index futures. Results for out of sample show that the neural network forecast performance was better than that of the ARIMA model. Also, a two-way ANOVA confirms that the employed neural network was able to provide the trader with more arbitrage profits than the traditional cost-of-carry model even though it observed relative less profitable arbitrage timing. The results can be attributed to the network';s higher ability to capture nonlinear market patterns.