搜索结果: 1-13 共查到“数量经济学 GARCH”相关记录13条 . 查询时间(0.082 秒)
安徽财经大学中级计量经济学课件第二章第二节 ARCH和GARCH模型。
Comparison results for Garch processes
Comparison results Garch processes Statistical Finance
2012/4/28
We consider the problem of stochastic comparison of general Garch-like processes, for different parameters and different distributions of the innovations. We identify several stochastic orders that ar...
Realized Wavelet Jump-GARCH model: Can wavelet decomposition of volatility improve its forecasting?
wavelet decomposition jumps volatility forecasting Realized GARCH
2012/4/28
In this paper, we propose a forecasting model for volatility based on its decomposition to several investment horizons and jumps. As a forecasting tool, we utilize Realized GARCH framework of Hansen e...
Market, Interest Rate and Exchange Rate Risk Effects on Financial Stock Returns: A GARCH-M Approach
Exchange rate interest rate multivariate GARCH volatility
2010/9/7
In this paper we examine the sensitivity of financial sector stock returns to market, interest rate, and exchange rate risk in three financial sectors (Banking, Financial Services and Insurance) in 16...
Markov Chain Monte Carlo on Asymmetric GARCH Model Using the Adaptive Construction Scheme
Markov Chain Monte Carlo Bayesian inference
2010/11/2
We perform Markov chain Monte Carlo simulations for a Bayesian inference of the GJR-GARCH model which is one of asymmetric GARCH models. The adaptive construction scheme is used for the
construction ...
Bayesian inference with an adaptive proposal density for GARCH models
Bayesian inference adaptive proposal GARCH models
2010/11/2
We perform the Bayesian inference of a GARCH model by the Metropolis-Hastings algorithm with an adaptive proposal density. The adaptive proposal density is assumed to be the Student’s t-distribution a...
An Adaptive Markov Chain Monte Carlo Method for GARCH Model
Chain Monte Carlo Bayesian inference GARCH model Metropolis-Hastings algorithm
2010/10/29
We propose a method to construct a proposal density for the Metropolis-Hastings algorithm in Markov Chain Monte Carlo (MCMC)simulations of the GARCH model. The proposal density is constructed adaptive...
随机影响变截距面板GARCH(1,1)模型及其应用
2007/8/7
【摘要】本文提出了具有随机影响的变截距面板GARCH(1,1)模型,应用基于面板数据的拉格朗日乘数(LM)法对该过程的GARCH效应进行检验,并给出模型参数的最大似然估计(MLE),最后对我国5个区域的外商直接投资(FDI)构建了面板数据条件异方差模型,分析了外商直接投资的波动性及其意义,得到比固定影响模型更好的结论。关键词 随机影响 变截距 面板GA...
变结构门限t—GARCH模型及其伪持续性研究
2007/8/7
【摘要】为了反映金融时间序列的波动集聚性、非对称性、厚尾性以及在实证研究中表现出的伪持续性,本文结合门限GARCH模型以及变结构的方法提出了变结构门限t—GARCH模型。首先用Monte Carlo模拟的方法考虑了变结构GARCH模型中存在的伪持续性问题;其次针对金融时间序列非对称性、厚尾性以及强持续性的特点提出了变结构门限t—GARCH模型,总结了关于变结...
内容摘要:有效市场理论(Efficient Market Hypothesis,EMH)认为股票价格总是可以充分体现可获得信息的影响,股票价格等于其“内在价值”,在一个风险中性的理性投资者构成的竞争市场中,股票的基本价值和价格服从随机游动规律,收益率是不可预测的。本文采用ANST-GARCH模型对我国股票市场收益率序列进行计量检验,发现即使经过风险调整,股票...
基于高频数据的分类信息混合分布GARCH模型研究
2007/8/7
【摘要】本文提出了基于高频数据的分类信息混合分布GARCH模型,以上证指数的五分钟高频数据作为研究对象,引入修正的混合分布(MMM)模型,将去除了趋势性和序列相关性的不同性质的对数交易量分解为进入市场的正的随机信息流和负的随机信息流两部分,作为分类信息流代理,加入GARCH模型的方差方程中,考察好消息、坏消息对上证指数波动性的影响。关键词 MMM,高频数据,分类信息,GARCH
成交量能解释收益率的GARCH效应吗:中国市场实证
2007/8/7
【摘要】GARCH模型所刻划的收益率波动集聚特性的理论解释归因于交易信息流量的自相关结构。本文把成交量及其滞后项作为交易信息流量的替代指标,将其引入条件方差的动态模型,试图检验成交量对收益率GARCH效应的解释作用,中国市场指数的实证发现条件波动与同期交易量呈显著正相关,表明交易量及其滞后项中附含有额外的关于股票收益率方差的信息,但收益波动持续性依然很强,意...
基于GARCH模型的VaR方法对中国股市的分析
Value at Risk GED分布 GARCH模型
2007/5/10
中国股票市场的收益率具有厚尾性,可以利用GARCH模型中的条件方差来度量其VaR。我们运用了基于不同分布假定下的GARCH模型的VaR方法对深圳股票市场与上海股票市场的风险进行了分析,分析的结果表明深圳股票市场比上海股票市场有更大的风险,用T分布和GED分布假定下的GARCH模型能够更好地反映出收益率的风险特性。