中国证券市场佣金制度研究——关于中国证券市场的SCP分析框架

以哈佛大学的梅森 (Mason)和贝恩 (Bain)等人为代表的现代产业组织理论 ,以新古典学派的价格理论为基础 ,以实证研究为主要手段 ,把产业分解成特定的市场 ,构造了一个既深入具体环节、又有系统逻辑体系的市场结构 (Structure)———市场行为(Conduct)———市场绩效 (Performance)的分析框架 (简称SCP框架 )。这一分析方法 ,为个别产业的具体分析和实证研究提供了理论基础和研究路径。本文以产业组织理论所提供的理论基础和研究路径 ,分析了我国证券市场结构与佣金制度、证券公司在经纪业务中的竞争行为与固定佣金制度 ,证券市场绩效与固定佣金制度 ,证券交易成本的调整对证券市场的影响 ,最后得出了结论并提出相关政策建议。     

审计价格下限：经济学的解释、后果及对策

有学者对注册会计师审计收费进行过实证研究,均证明注册会计师在收取审计费用时。会自动形成价格下限。本文从审计产权和博弈学的角度,分析了审计价格下限形成的原因,认为审计价格下限降低了审计市场的效率,建议改变审计师的聘用方式、聘用时间,充分披露审计报告。以有效遏制此现象的形成。     

家庭廉政预警机制探析——新制度经济学中有关“知识问题”的启示

尝试在家庭廉政预警机制中挖掘"知识问题"这个论题,通过设定"存在着大量由于分散知识、局部知识、隐蔽知识、不完全信息、信息不对称等引发的腐败现象"这个假设,分析了"知识问题"在家庭廉政预警中的表现,并对构建家庭廉政预警机制得出若干启示。     

上市公司审计委托模式的重新思考

上市公司欺诈和注册会计师审计失败是目前证券市场关注的热点。注册会计师独立性受阻是审计失败的重要根源,而现行的审计委托模式是造成注册会计师独立性受损的根本原因。本文分析了现行审计委托模式的缺陷,并结合我国实际,提出由中国证监会设立审计委员会统一管理上市公司会计报表审计,替代上市公司委托审计,向上市公司收取审计费用并支付给会计师事务所。通过建立一种新的审计委托模式以提高注册会计师审计独立性。     

中国基础领域垄断的形成与反垄断之路

本首先从社会主义也存在垄断，也要反垄断的理论视觉出发，全方位地探讨了基础领域垄断的形成，反垄断的难点、措施，并战略性地提出了培育大型企业集团的策略。     

Is the Compensation Model for Real Estate Brokers Obsolete?

This study examines the traditional compensation model for real estate brokers under which both the listing and buyer brokers are paid by the seller based on a percentage of the property sales price. We argue that this model has not evolved to reflect contemporary legal agency relationships and technology-driven information availability. It therefore creates substantial transactional inefficiencies for buyers and sellers at both the matching and bargaining stages of a transaction. While there is evidence that market forces are pushing for a change in the status quo, there is also evidence that the brokerage industry is resisting this change by pursuing anti-competitive policies and laws. We explore the economics of the current and alternative compensation structures and suggest policy implications regarding anti-competitive behavior in the brokerage industry.

B3G射频接收机前端设计

分析了DC-OFDM零中频接收方案,采用两个相邻子载波以分路/合路的方式进行信号处理以降 低硬件难度和复杂度。利用ADS软件设计了B3G射频接收机,其低噪声放大器的最低噪声系数 为1.7 dB,三阶交调点为-1 dBm;下变频器在频带范围内其增益为12.5 dB, 1 dB压缩点-12 dBm,三阶交调点-3 dBm。实验 测试结果表明,所设计的前端满足接收机的指标要求,适合于宽带通信系统。     

中国收入差距与社会稳定问题的博弈分析

运用博弈理论分析中国收入差距与社会稳定问题有一定意义。在具有公平因素偏好的效用函数基础上分析社会低收入阶层决策对收入差距敏感程度的影响;在重复博弈中引入不同策略收益的增长率,分析社会低收入阶层在三阶段动态博弈中采取偏离子博弈完美均衡的非理性斗争策略的具体条件:其取决于收入差距敏感程度、自身收入的增长(变化)率和各社会阶层采取不同策略的预期收益等因素。     

Economics at the FCC: 2007–2008

In any given year, the Federal Communications Commission confronts many issues of interest to economists. This paper summarizes four issues of interest during the last year: Spectrum Auctions, Media Ownership, Quality-Adjusted Cable Prices, and Leased Access. It highlights the role that economic analysis played in each and identifies areas where further research would be fruitful. This article was drafted while the first author was Chief Economist at the Federal Communications Commission. The opinions expressed here are solely those of the authors and do not necessarily reflect those of the Federal Communications Commission, its Commissioners, or its staff. We would like to thank Larry White and Tracy Waldon for helpful comments.     

ON ARBITRAGE AND DUALITY UNDER MODEL UNCERTAINTY AND PORTFOLIO CONSTRAINTS

We consider the fundamental theorem of asset pricing (FTAP) and the hedging prices of options under nondominated model uncertainty and portfolio constraints in discrete time. We first show that no arbitrage holds if and only if there exists some family of probability measures such that any admissible portfolio value process is a local super‐martingale under these measures. We also get the nondominated optional decomposition with constraints. From this decomposition, we obtain the duality of the super‐hedging prices of European options, as well as the sub‐ and super‐hedging prices of American options. Finally, we get the FTAP and the duality of super‐hedging prices in a market where stocks are traded dynamically and options are traded statically.