一类四阶非线性系统的李雅普诺夫函数的稳定性

本文运用"类比法",在文[1]的基础上,构造了一类四阶非线性系统的李雅普诺夫函数给出了该系统的全局渐近稳定性的充分条件,较大推广了文[1]的结果.     

一类三阶非线性系统的全局稳定性

本文运用“类比法”,在文[1]的基础上,构造了一类三阶非线性系统的李雅普诺夫函数并给出了该系统的全局渐近稳定性的充分条件,较大推广了文[1]的结果。     

财政部安全监管总局 关于印发《企业安全生产费用提取和使用管理办法》的通知

政策背景 2004年以来,关于安全生产费用提取和使用方面,财政部、国家发展改革委、安全监管总局等部门先后制定并实施了财建[2004]119号文、财建【2005】168号文、财建[2006]180号文、财企[2006]478号文等。     

本刊各类参考文献的书写格式

专著:[序号]作者.书名:多卷出的分卷书名或册次[M].译者,译.版本.出版地:出版社,出版年.学位论文:[序号]作者.文题:副标题[D].所在城市:保存单位,年份.期刊:[序号]作者.文题:副标题[J].刊名,年,卷(期):起始-终止页码.文集:[序号]作者.文题[C]//编者.文集:多卷出的分卷名或册次.出版地:出版社,出版年:起始-终止页码.报纸:[序号]作者.文题:副标题[N].报纸名,出版日期(第几版).     

财政部 国家税务总局 关于将铁路运输和邮政业纳入营业税改征增值税试点的通知

正政策背景2013年12月12日,财政部与国家税务总局联合发布了《关于将铁路运输和邮政业纳入营业税改征增值税试点的通知》(财税[2013]106号,以下简称"106号文"),明确从2014年1月1日起,将铁路运输业和邮政业纳入营业税改征增值税试点范围。106号文取代了《财政部国家税务总局关于在全国开展交通运输业和部分现代服务业营业税改征增值税试点税收政策的通知》(财税[2013]37号,以下简称"37号文")。37号文自2014年1月1日起废止,但其中大部分的政策条款仍在106号文中得以延续。需要纳     

国家税务总局关于加强土地增值税征管工作的通知

政策背景继国务院发布的国发[2010]10号文（以下简称“10号文”）《关于坚决遏制部分城市房价过快上涨的通知》之后,2010年5月25日,国家税务总局发布了国税发[2010]53号文（以下简称“53号文”）提出了将土地增值税作为调节手段以达到稳定房地产价格和促进房地产行业健康发展的目的。     

非居民企业股权转让的企业所得税管理

2009年12月15日,国家税务总局下发了《关于加强非居民企业股权转让所得企业所得税管理的通知》（国税函[2009]698号文,以下简称“698号文”）,这对业界炒得沸沸扬扬的非居民企业的股权转让的问题,自《企业所得税法》及实施条例实施到国税发[2009]3号文、     

浅议"营改增"对会展业的影响及其对策

会展业属于服务业,"营改增"之前按照服务业中的代理业缴纳营业税.由于会展业存在大量的代收代垫业务,营业税实行差额征收,会展企业的实际税负并不重.在"营改增"试点期间,根据财税[2011]110号文《营改增试点方案》的规定,会展业的代收代垫金额可以合理扣除,减轻了会展企业的税收负担.2013年8月1日起"营改增"扩大到全国试点后,仅限有形动产融资租赁可扣除部分费用,依据财税[2013]37号文的规定,会展业取消费用的扣除[1].     

国家税务总局关于印发《非居民享受税收协定待遇管理办法(试行)》的通知

日前,国家税务总局颁布了国税发[2009]124号文,对非居民来源于中国的收入享受税收协定待遇的管理进一步的规定。124号文从2009年10月1日起生效。     

国有上市公司股权激励现状及其建议

一、国有上市公司股权激励的相关政策为指导国有控股上市公司(境内)规范实施股权激励制度,2006年9月30日国务院国资委、财政部联合发布《国有控股上市公司(境内)实施股权激励试行办法》(国资发分配[2006]175号,简称[2006]175号文);为进一步规范实施股权激励,2008年10月21日国务院国资委、财政部联合发布《关于规范国有控股上市公司实施股权激励制度有关问题的通知》(国资发分配[2008]171号,简称[2008]171号文,与[2006]175号文统称国资委版办法)。     

基于GARCH类模型的人民币汇率非线性依赖关系研究

利用三类不同结构的基本 GARCH 类模型对四个不同时间跨度上人民币汇率序列进行拟合和效度检验;并进一步结合窗口检验程序,借助相关性 C 统计量和双相关 H 统计量对实证对象的 GARCH 类非线性结构的稳定性及 GARCH 类模型中有关非线性相关的基本假设进行检验。结果表明,人民币汇率系统是一个典型的非线性动态复杂系统,人民币汇率序列中的 GARCH 类非线性结构表现出了非持续和瞬时性的特点。     

Lewis' branching poisson process model from the point of view of the theory of compound poisson processes

Abstract

1. Lewis [1] has used a composite process as a model for computer failure patterns. This model seems to be of a much wider scope of application at least after some modifications, which are discussed in this note. ¹ The present author has read Lewis [1] only in the form of a galley proof with due regard to a few corrections kindly communicated by Lewis. This note was prepared in 1964 before the publication of Lewis' paper.      

Nonlinear serial dependence and the weak-form efficiency of Asian emerging stock markets

The objective of this paper is to re-examine the weak-form efficiency of 10 Asian emerging stock markets. Using a battery of nonlinearity tests, the statistical results reveal that all the returns series still contain predictable nonlinearities even after removing linear serial correlation from the data. The next stage of sub-sample analysis using the Hinich [Hinich, M., 1996. Testing for dependence in the input to a linear time series model. Journal of Nonparametric Statistics 6, 205–221] bicorrelation test shows that the 10 Asian series follow a pure noise process for long periods of time, only to be interspersed with brief periods of strong nonlinear dependence. The exploratory investigation found that the cross-country differences in nonlinear departure from market efficiency can be explained by market size and trading activity, while the transient burst of nonlinear periods in each individual market can be attributed largely to the occurrence of economic and political events.     

Regional Housing Prices in the USA: An Empirical Investigation of Nonlinearity

Existing literature on housing prices is predominantly in a linear framework, and an important question that has not been addressed is whether housing prices exhibit nonlinearity. We examine Smooth Transition Autoregressive (STAR) model based nonlinear properties of housing prices over the 1969–2004 period for the entire US and the four regions. Our main findings are (1) housing price for the entire US and all regions except for the Midwest show non-linearity, (2) the dynamic properties implied by the nonlinear estimation explain the typical patterns that have characterized each housing market, and (3) results of Granger causality tests look more plausible in the nonlinear framework where we find stronger evidence of Granger causality from housing price to employment and also from mortgage rates to housing price.

An example of indifference prices under exponential preferences

The aim herein is to analyze utility-based prices and hedging strategies. The analysis is based on an explicitly solved example of a European claim written on a nontraded asset, in a model where risk preferences are exponential, and the traded and nontraded asset are diffusion processes with, respectively, lognormal and arbitrary dynamics. Our results show that a nonlinear pricing rule emerges with certainty equivalent characteristics, yielding the price as a nonlinear expectation of the derivatives payoff under the appropriate pricing measure. The latter is a martingale measure that minimizes its relative to the historical measure entropy.Received: July 2003, Mathematics Subject Classification: 93E20, 60G40, 60J75JEL Classification: C61, G11, G13The second author acknowledges partial support from NSF Grants DMS-0102909 and DMS-0091946. We have received valuable comments from the participants at the Conferences in Paris IX, Dauphine (2000), ICBI Barcelona (2001) and 14th Annual Conference of FORC Warwick (2001). While revising this work, we came across the paper by Henderson (2002) in which a special case of our model is investigated     

On derivatives with illiquid underlying and market manipulation

In illiquid markets, option traders may have an incentive to increase their portfolio value by using their impact on the dynamics of the underlying. We provide a mathematical framework to construct optimal trading strategies under market impact in a multi-player framework by introducing strategic interactions into the model of Almgren [Appl. Math. Finance, 2003, 10(1), 1–18]. Specifically, we consider a financial market model with several strategically interacting players who hold European contingent claims and whose trading decisions have an impact on the price evolution of the underlying. We establish the existence and uniqueness of equilibrium results for risk-neutral and CARA investors and show that the equilibrium dynamics can be characterized in terms of a coupled system of possibly nonlinear PDEs. For the linear cost function used by Almgren, we obtain a (semi) closed-form solution. Analysing this solution, we show how market manipulation can be reduced.     

企业杠杆率、宏观经济景气指数与系统性金融风险

打赢防范化解重大金融风险攻坚战是打好"三大攻坚战"的重要任务之一。本文在对企业杠杆率、宏观经济景气指数与系统性金融风险关联性进行理论分析的基础上,利用复合系统性压力指数法测度了我国系统性金融风险,并建立了马尔可夫区制状态转换模型,以挖掘企业杠杆率、宏观经济景气指数及系统性金融风险之间的非线性动态关联机制。研究表明,样本期内我国系统性金融风险水平波动明显;企业杠杆率、宏观经济景气指数与系统性金融风险间存在动态关联,且两区制特征明显,高压力时期的关联效应比低压力时期更显著;企业杠杆率对系统性金融风险的直接影响不显著,但会通过影响宏观经济对系统性金融风险产生间接影响;宏观经济景气指数与系统性金融风险相互间存在负向影响。鉴此,现阶段应控制好从"结构性去杠杆"向"稳杠杆"转变的节奏,利用"双支柱调控"熨平局部金融失衡和杠杆结构性问题;同时,密切关注部门间金融风险的交叉传染,提升经济发展质量,进而从根本上防范化解系统性金融风险。     

Nonlinear Mean Reversion in the Short-Term Interest Rate

Using a new Bayesian method for the analysis of diffusion processes,this article finds that the nonlinear drift in interest ratesfound in a number of previous studies can be confirmed onlyunder prior distributions that are best described as informative.The assumption of stationarity, which is common in the literature,represents a nontrivial prior belief about the shape of thedrift function. This belief and the use of "flat" priors contributestrongly to the finding of nonlinear mean reversion. Implementationof an approximate Jeffreys prior results in virtually no evidencefor mean reversion in interest rates unless stationarity isassumed. Finally, the article documents that nonlinear driftis primarily a feature of daily rather than monthly data, andthat these data contain a transitory element that is not reflectedin the volatility of longer-maturity yields.     

Endogenous Parameter Time Series Estimation of the Ohlson Model: Linear and Nonlinear Analyses

This paper tests the empirical validity of the Ohlson (1995) model on a firm-level time series basis. The coefficients of the earnings dynamic and valuation equations are first estimated by OLS. Next, recognizing the nonlinear relationships among the parameters, each equation is estimated by nonlinear Least Squares. Lastly, the model is estimated as a restricted system by nonlinear Least Squares and nonlinear SUR. In all cases, parameters are endogenously estimated. Irrespective of the estimation method, the Ohlson model often yields inconsistent or insignificant parameter estimates. Nevertheless, point estimates of equity risk premia are similar to those obtained from alternative methodologies.     

中国金融压力与经济增长的动态关联研究

本文依据有代表性的金融指标的结构化特点,构建具有时效性的金融压力指数以识别中国金融体系的压力,运用马尔可夫区制转移模型(MS-VAR)研究中国金融体系压力的区制特征,并利用Granger线性与非线性因果关系检验验证了金融压力与工业增加值的增长关系。研究表明,2008年以来,中国金融压力较高;2010年一季度后金融压力有所降低但是波动较大;金融压力指数对工业增加值有显著地线性和非线性Granger影响;对金融压力指数进行预测的结果表明,中国金融系统压力在2011年下半年以后处于低压力区制的高位置波动,并有转向高压力区制的趋势,金融系统表现为不稳定。