关于增强税制公平效应的探讨

我国目前以间接税为主的税制结构对于缩小收入分配差距的作用不显著,随着我国社会经济形势的发展变化,增强税制公平效应有其必要性,税收公平应该成为税制建设和优化的指导性原则。通过对影响税制公平效应主要因素的分析,指出今后税制公平改革的发展方向,并提出增强公平效应的税制改革路径,即优化税制结构增强税制公平效应、适度增强间接税的公平效应以及充分发挥直接税的公平效应。     

制度环境、股权制衡对企业创新绩效的影响机理——基于有调节的中介效应

在对制度环境、股权制衡与企业创新之间的相关性进行理论分析的基础上,利用359家深市上市企业在2008—2010年的数据,实证检验了制度环境、股权制衡对企业创新绩效的影响机理。实证结果表明:制度环境对企业创新绩效具有显著的正向影响,内部驱动力在该影响过程中发挥中介作用;股权制衡正向调节内部驱动力与企业创新绩效之间的关系;高股权制衡度能促进企业增加R&D投入,从而提高企业的创新绩效;低股权制衡度对企业R&D投入增加、创新绩效提升的影响不明显。最后针对营造良好的制度环境、建立有效的股权制衡结构等给出对策建议。     

长期协议、价格指数和铁矿石定价研究

在长期协议市场和现货市场并存的条件下,当市场存在不确定性和信息不对称时,可以减小随机交易波动,这不仅有利于保持长期协议供给方的领先优势,还能有效降低市场的均衡价格。在我国进口铁矿石定价体系中,国外厂商铁矿石价格指数和中国铁矿石价格指数存在差异和共同点,因此,只有建立运行高效的铁矿石市场交易机制,我国才能获得国际铁矿石定价权。     

上市公司股权激励问题探析

股权激励制度曾被视为降低经理层代理成本、完善公司治理的良方,但安然事件等一系列公司丑闻逐渐暴露出该制度的弊端。近年来股权激励制度在我国上市公司迅速推广,一些公司通过股权激励取得了“公司业绩增长,股价上涨,投资者受益,公司高管暴富”的“多赢”局面,实际上在表面繁荣、貌似合法与市场化的背后隐藏着大量问题,部分公司的股权激励已被扭曲为公司管理层牟取暴利的寻租工具。这表明,在资本市场有效性程度低、上市公司治理不规范的情况下,不宜大规模推广股权激励制度。     

Modeling the dependence structure between default risk premium,equity return volatility and the jump risk: Evidence from a financial crisis

This paper investigates the dependence structure between default risk premium, equity return volatility and jump risk in the equity market before and during the subprime crisis. Using iTraxx CDS index spreads from Japanese and Australian markets, the paper models the different relationships that can exist in different ranges of behavior. We consider several Archimedean copula models with different tail dependence structures, namely, Gumbel, Clayton, Frank, AMH and Joe copulas. Although the dramatic change in the levels of the iTraxx CDS index, we find strong evidence that the dependence structure between CDS and stock market conditions is asymmetric and orienting toward the upper side. In addition, we find that the Japanese CDS market is more sensitive to the stock return volatility than the jump risk and the magnitude of this sensitivity is related to the market circumstances. However, Australian CDS market is more sensitive to the jump risk than stock return volatility before and during the financial crisis. This result has important implications for both global financial stability and default risk management. Specifically, the heterogeneity of markets, coupled with the diversity in the risk exposures cause the default risk premium and equity markets to exhibit different levels of sensitivity.     

从债法视角论倒签提单行为的法律性质

作为国际贸易实践中极为普遍的运输单据欺诈之一,倒签提单行为法律性质的认定在审判实践中往往引起诸多争议。倒签提单行为衍生自国际贸易合同和海上货物运输合同,其本身不能脱离合同而独立存在,因此从债法角度分析倒签提单的法律性质将更为清晰。倒签提单行为的通常情形是违约行为,构成特例侵权行为;倒签提单的行为人在整体上应当承担违约责任,在特例中才能构成违约责任和侵权责任的竞合。     

Stock return, risk, and legal environment around the world

This paper investigates how the legal environment in a country influences performance and risk of stock across countries at different developmental stages and of various rules of jurisdiction. Using data of 4916 stocks from 37 countries, our empirical findings confirm that equities in countries with English common law origin have higher risk premiums than those in civil law countries, particularly for countries of the French/Spanish code. The indicators representing high efficiency in law system, low corruption, strong legal protection of investors' rights, and reliable political environment are associated with low risk and high performance. The various elements of legal procedural formalism, however, have differing effects on volatility and return.     

不同控股比例下的国际转移定价模型

转移价格在跨国企业的国际经营活动中起着重要的作用。本文从企业税负驱动机制的微观层面上,扩展国际转移定价的理论模型,深入分析在不同控股比例和红利分配率情况下转移价格的理性选择;并且运用模拟方法,揭示不同变量条件下的最优转移价格策略。     

股权激励与代理成本

传统以管理费用率作为代理成本的替代不能恰当地反映管理者在职消费和职务侵占的真实水平,本文用经过Jones模型纠正的费用率作为代理成本的替代,考察了所有权性质、总经理持股与否及持股比例对代理成本的影响。本文提供了私有制下总经理适当持股有利于降低代理成本的可靠证据,为中国上市公司即将展开的股权激励计划提供证据的支持。     

品牌资产评估:一个模型的提出与验证

在品牌价值日益得到承认与重视的大趋势下,品牌资产评估的重要性也日趋明显。笔者就品牌资产价值从经济学角度给予了理论上的解释,在此基础上提出以品牌获取的超额利润为基准,着眼于未来获利能力的评估模型,并对该模型进行了验证与对比研究。