外汇储备币种结构优化配置实证研究——基于因素分析法北大核心CSSCISSCI

外汇储备币种结构配置不合理使我国外汇储备面临汇率风险、流动性风险以及资产贬值等一系列问题。在美元不断升值,欧元和日元持续疲软的背景下,如何优化我国外汇储备的币种结构成为亟待解决的问题。外汇储备可以分为交易型外汇储备和配置型外汇储备,交易型外汇储备主要受到风险和收益因素影响;配置型外汇储备主要受到对外贸易结构、外债结构、外商直接投资来源结构和汇率制度安排等因素影响。文章基于因素分析法首先从各影响因素出发,分别测算最优的交易型外汇储备和最优的配置型外汇储备的币种结构,然后从外汇储备需求的角度考虑这些因素在外汇储备中的权重,从而确定出我国外汇储备最优币种结构,以纠正我国目前外汇储备币种配置不合理的问题。     

中国外汇储备最优币种结构优化的实证研究

币种单一的高额外汇储备隐藏着巨大的汇率风险,本文以中国外汇储备的巨大美元风险为背景,以外汇储备的币种结构为研究对象,以外汇储备交易性需求、预防性需求和收益性需求为基础,基于Markowitz资产组合模型,估计出当前中国外汇储备最优的币种结构,然后运用Va R模型测算上述方法所得出的币种结构是不是最优并有效的;最后,本文提出外汇储备最优币种结构选择要考虑多种因素并调整各储备货币权重等对策建议。     

我国外汇储备的结构优化配置研究

我国外汇储备规模巨大,但结构不尽合理,汇率波动对我国的外汇储备价值造成了较大影响。本文主要以我国外汇储备面临的汇率风险为切入视角,通过GARCH模型对美元、欧元、英镑、日元的汇率波动进行分析,再通过风险价值VaR模型,以汇率波动的标准方差来描述当前不同币种外汇储备所面临的汇率风险,使风险值得到了量化,进而具有可比性。通过结合不同币种在汇率波动下的风险和收益,分析黄金储备对我国外汇储备的影响后,联系我国实际情况,为我国外汇储备的结构优化配置提出了相应的政策建议。     

我国外汇储备的结构优化配置研究

我国外汇储备规模巨大,但结构不尽合理,汇率波动对我国的外汇储备价值造成了较大影响。本文主要以我国外汇储备面临的汇率风险为切入视角,通过GARCH模型对美元、欧元、英镑、日元的汇率波动进行分析,再通过风险价值VaR模型,以汇率波动的标准方差来描述当前不同币种外汇储备所面临的汇率风险,使风险值得到了量化,进而具有可比性。通过结合不同币种在汇率波动下的风险和收益,分析黄金储备对我国外汇储备的影响后,联系我国实际情况,为我国外汇储备的结构优化配置提出了相应的政策建议。     

我国外汇储备结构的优化分析

近年来我国外汇储备的一半以上都投资在了美国债券和以美元表示的不动产上。为最大限度地降低风险,外汇储备结构需适时调整。本文在遵循安全性、流动性、收益性的原则下,结合海勒-奈特模型、杜利模型考虑的相关因素,对我国外汇储备资产结构与币种结构进行优化分析,并给出对策建议。     

基于模糊决策理论的中国外汇储备币种结构研究

借鉴模糊决策理论的满意度概念,从理论上建立外汇储备币种结构选择的一般最优化模型,从实证上模拟在不同隶属函数参数和不同汇率路径假设下的中国外汇储备币种结构,并分析了收益率隶属函数参数和利率对中国外汇储备货币结构的影响.     

多目标约束下的中国外汇储备最优币种结构

采用带约束条件的均值-方差模型估算2001—2011年中国外汇储备的最优币种结构.实证过程包括三项改进:兼顾央行的多重目标,构造涵盖均值方差法和交易法的优化框架;建立收益最大化和风险最小化两个基本模型;对货币收益率做出两种假设——汇率服从随机游走、央行对汇率有完全预期.研究表明:单从收益-风险角度考虑,最优投资组合以韩元和英镑为主;如果考虑外债结构、贸易结构和汇率制度等约束条件,美元在最优币种结构中占主导地位.     

基于资产组合模型的中国外汇储备最优币种结构的分析

目前我国已经成为世界上外汇储备持有量第一大国家,在国际金融市场风云突变的今天,持有的外汇越多,承担的汇率风险也就越大。稍有不慎,持有巨额的外汇储备就会面临风险,不仅不会带来收益,还可能遭受损失。因此,合理的组合外汇储备币种结构对于外汇储备保值及增值的具有重要的影响。本文基于资产组合模型对中国外汇储备最优币种结构进行分析,并对我国外汇储备最优币种结构谈谈自己的建议。     

基于跨国货币合作视角的外汇储备风险控制研究

我国的外汇储备主要以美元形式持有,并且主要投资于美国国债,其特征可以概括为额度高、币种和资产结构单一。这种特征必然导致我国外汇储备面临较高的汇率风险、利率风险、信用风险以及流动性风险。因此,控制我国外汇储备的风险,理应从减少超额储备以及改善外汇储备币种和资产结构入手。2008年之后,以货币互换为代表的跨国货币合作成为新趋势,其在减少超额外汇储备量以及改善外汇储备结构方面颇为有效,善加利用可以达到控制我国外汇储备风险的目的。     

基于风险选择与投资收益的外汇储备币种结构研究

随着外汇储备规模的不断增加,国家外汇储备投资的风险偏好亦会发生相应的变化。借鉴 J. H.Makin(1971)的方法,构建外汇储备币种结构配置理论模型,讨论在效用最大化的情况下,储备资产投资如何在安全性、流动性和盈利性三原则间进行权衡。假设外汇储备仅投资于美元和欧元两种币种资产,选取2000年初~2014年第三季度的10年期美国国债和欧元区公债季度数据,运用协整分析、格兰杰检验等方法进行的实证研究发现：储备货币在外汇储备中的比重与储备货币收益率及其三阶矩显著正相关,国家外汇储备投资总体而言是风险规避型的。     

Short-sale refinancing and price adjustment speed to bad news: Evidence from a quasi-natural experiment in China

Short selling may accelerate stock price adjustment to negative news. However, the literature provides mixed evidence for this prediction. Using short-sale refinancing and a staggered difference-in-differences (DID) model, this paper explores the effect of short selling on stock price adjustment. Our results show that (1) short-sale refinancing improves the speed of stock price adjustment to negative news. This result holds after we control for endogeneity. (2) The positive relationship between short-sale refinancing and stock price adjustment speed is significant in subsamples of stocks with higher earnings management or lower accuracy of analyst forecasts, indicating that firms with more opaque information are more likely to be targeted by short sellers. In subsamples of stocks with a higher ownership concentration or lower ownership by institutional investors, short selling is more likely to increase the speed of stock price adjustment, indicating that ownership structure may influence negative news mining. (3) As short-sale refinancing exacerbates the absorption of bad news by stock prices, it increases crash risk. This study enriches the research on the economic consequences of short selling and provides empirical evidence supporting regulations on short selling in China.     

Guidelines for Manuscripts Submitted to The China Journal of Accounting Research

正The China Journal of Accounting Research"CJAR"(ISSN 1755-3091)publishes quarterly.It contains peer-reviewed articles and commentaries on accounting,auditing and corporate governance issues that relate to the greater China region.We welcome the submission of both theoretical and empirical research papers pertinent to researchers,regulators and practitioners.Authors should note:     

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Income smoothing and the cost of debt

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This article defines the case for treating management history as a discrete subject area, although one closely related to business, accounting, labour, and industrial history. It seeks to concentrate on the nature, process, and practice of management as an activity within the organization, and to argue that it is important that modern British managers understand the intellectual and cultural roots of their profession, since without these they will tend to be swayed by short-term management 'fads'. Within the broad topic there are several identifiable sub-areas for potential exploration, including the comparative historical development of management between different countries, management institutions, managerial careers and labour markets, management structures, management skills, and management thought and theory.     

Cost accounting standard and cost accounting systems in Japan. Lessons from the past - recovering lost traditions

This paper aims to show two things. The first is how Japanese culture has contributed to the development of Japanese cost accounting history. The second is to reveal the research possibilities of cost accounting history. This paper also reviews the salient features of several important examples of these aspects of cost accounting practice in Japan. It therefore explores, through some practical illustrations, how and why Japanese cost accounting differs from that found in the West.     

Guidelines for Manuscripts Submitted to The China Journal of Accounting Research

【正】The China Journal of Accounting Research‘‘CJAR’’(ISSN 1755-3091)publishes quarterly.It contains peer-reviewed articles and commentaries on accounting,auditin...     

Shared Standard Setting in the Public Interest:A Strong Model

正The last two decades have been a definitive era in the evolution of the accountancy profession.In the wake of major corporate scandals at the turn of the century,an international public debate arose on the need for more effective and well-considered regulation;this debate then reignited during the global financial and sovereign debt crises.     

HOW TO PUT TOGETHER A COMPLETE PACKAGE

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