沪深股市理性投机泡沫的实证分析

本文采用持续期限检验方法对我国沪深股市是否存在理性投机泡沫进行了实证检验,检验结果显示,在样本期内,沪深股市均具有理性投机泡沫特征,与深市相比,沪市理性投机泡沫现象更加显著。     

股市投机泡沫:理论模型、检验与度量方法研究

投机泡沫是导致泡沫经济并引发经济危机的重要根源,而不断扩大的股市泡沫则预示着泡沫经济的到来。投机泡沫的度量方法包括股价指数的上涨时间、上涨速度和换手率、股票市场的相对成长性估值类方法和Q比率方法。但是这些方法对经济发展及社会的经济环境不能全面地考虑。应构造建立在股票内在价值基础上的检验方法,运用相对估计指标对泡沫进行全面的度量,从而提高泡沫检验的准确度和对股票价值检验及预测的实际应用能力。     

基于动态期限相关法的股市价格泡沫实证检验

本文通过构造动态期限相关法,以250个交易日为定样本容量窗口.动态的考察了我国上证综合指教从1992年1月2日到2008年11月28日各个阶段的价格泡沫状况.实证表明,我国股市自建立以来,价格泡沫就伴随左右.而且阶段性的暴涨暴跌,极易催生泡沫.随着次级债危机的爆发,股市急剧下跌,当前已经产生了负向的随机泡沫.     

我国股市泡沫实证研究

股市泡沫是指股票价格相对于由经济基础条件决定的市场基础价值的向上偏移。利用因素模型,可成功地把基础价值从市场价格中分离出来。这一全新的股市泡沫度量方法,对监测我国股市泡沫有十分重要的借鉴意义。     

基于房租资本化模型的我国房地产泡沫实证分析

金融危机下低迷了一整年的我国房地产市场在2009年4月迅速回暖,房价一路飙升,房地产泡沫问题再一次成为社会各界的争议热点。在这样的背景下,文章基于房租资本化模型,采用我国35个大中城市1999年第1季度至2009年第1季度的房屋销售价格指数和房屋租赁价格指数为样本,运用单位根协整方法检验房价和房租的长期均衡关系。研究结果发现,仅石家庄市的房屋销售价格和租金间存在协整关系,其他城市的房价与房租呈现严重背离。     

基于状态空间模型的浙江房地产价格泡沫的实证检验

根据房地产供求和基础价值理论,在对相关变量序列进行平稳性检验和协整检验的基础上,建立了状态空间模型,采用卡尔曼滤波计算方法,对浙江房地产价格是否存在泡沫进行实证检验。研究发现:浙江省住宅价格泡沫已经出现,且近年来呈加速膨胀的态势,加大宏观调控力度势在必行。     

我国价格泡沫成分的形成机制分析与实证检验

由于各种经济因素的扰动和冲击,价格水平往往会偏离均衡约束所形成的基础价格,从而导致各种经济泡沫的出现.文章分析了我国经济运行中泡沫的形成机制和存在性.通过检验我国经济运行不同阶段的价格变化路径上是否存在理性泡沫成分的假设后发现,只有在1983年1月至1989年12月这段高通货膨胀时期价格水平当中包含了泡沫成分,并以此对我国通货膨胀或通货紧缩的成因和属性给出了分析和判断.     

我国ST股票价格泡沫问题研究——基于A股市场的实证检验

证券市场中股票价格泡沫是股价持续上涨从而导致其市场价格高于基础价值。ST股票背离于市场的表现使其所代表的投机泡沫尤为严重。通过使用动态自回归方法以及单位根检验方法实证分析了我国证券市场中ST股票价格泡沫的水平与性质。检验结果表明,我国ST股票长期存在泡沫,近两年虽然有所下降,但依然较高,而且ST股票泡沫水平随着其股价的上涨而上升。     

房产税与投机泡沫——基于天津的实证研究

The main purpose of this paper is to identify and measure the potential effect of property tax on speculative bubble in residential property market in China where the issue on the introduction of property tax is still fiercely debated. As a primary and necessary step, we firstly provide an empirical analysis on housing price dynamics of Tianjin. Moreover, this paper proposes a method to identify and measure the potential effect of property tax on speculative bubble in housing market. To capture the actual influence of property tax, we divide the effect into short-term one and long-term one and measure them respectively based on the information provided by estimation result of housing price structure.      

我国股市与宏观经济变量的协整分析及因果检验

从理论上得知主要宏观经济变量对股指波动的影响,再对这一问题运用单位根检验、协整检验、Granger因果检验,并建立ECM模型进行实证分析,以考查上证指数波动与宏观经济变量之间的关系。结果表明,股票价格指数与工业增加值增长速度之间存在长期均衡关系,金融机构储蓄存款与工业品出厂价格指数的差分与上证指数的差分之间存在Granger因果关系,差分次数主要受原数据平稳性的影响。最后,给出政策性建议。     

Real interest rate parity in Asian countries: evidence from the quantile unit root test

This article studies the real interest rate parity (RIP) for several Asian countries. This is done by examining the stationarity in the real interest rate differentials (rids) with respect to the US using the quantile unit root test. Our results show that rids exhibits unit-root behaviours in the lower quantile levels, and mean reversion in the upper quantile levels. Furthermore, large positive shocks tend to induce strong mean reversion and the adjustment towards the long-run equilibrium level is faster as rids gets larger, with shorter half-lives in the extreme quantile levels.     

Tests in contingency tables as regression tests

Applied researchers often use tests based on contingency tables, especially in preliminary data analysis and diagnostic testing. We show that many such tests may be alternatively implemented by testing for coefficient restrictions in linear regression systems.     

US macroeconomic conditions and asymmetric adjustment in Presidential approval

While voters may punish governments for worsening economic conditions, they may not reward them symmetrically for improving conditions. We examine whether US macroeconomic conditions affect Presidential approval asymmetrically using quarterly data from 1961_I to 2009_II. The results suggest that the relationship between Presidential approval and economic aggregates is nonlinear. Long‐run causality runs from the economic variables to Presidential support. The speed of adjustment towards long‐run equilibrium relationship also differs when conditions worsen from when they improve. Finally, we explore the impact of other factors, such as war and Presidential scandal on Presidential approval.     

基于状态空间模型的房地产价格泡沫问题研究

文章首先对房地产价格泡沫进行了理论界定,并对基础价值的特点进行了分析。随后在检验变量之间协整关系的基础上,建立了商品房供给与需求的状态空间模型,基础价值作为一种状态变量被纳入到模型中,从而对上海市房地产价格泡沫问题进行了实证研究。研究结果表明上海市房地产价格泡沫已经出现,并且近四年来平均泡沫程度达到22.5%。     

REVISITING THE REAL WAGES–UNEMPLOYMENT RELATIONSHIP. NEW RESULTS FROM NON-LINEAR MODELS

We examine the long-run real wages–unemployment relationship for five OECD countries over the period 1960:1–2001:4. Given the theoretical possibility of non-linear equilibrium due to downward real wage rigidity we employ econometric tests that allow for the presence of non-linearities in the long-run equilibrium. We adopt the notion of 'hidden co-integration' suggested by Granger and Yoon . This methodology has several advantages with respect to other non-linear models. We find statistical evidence that, in general, there is a long-run positive relation between real wages and unemployment only when both are affected by positive shocks. We also find a negative relationship between unemployment and productivity. The empirical analysis is complemented with the estimation of error correction models for all countries.     

Are there bubbles in Chinese RMB–dollar exchange rate? Evidence from generalized sup ADF tests

This article uses recently developed generalized sup ADF (GSADF) unit root tests into the analysis of nominal RMB–dollar exchange rates bubbles. Based on the results from the GSADF tests, we find strong evidence of explosive behaviour in the nominal exchange rate and investigate two bubbles there. The first bubble is during 2005–2006 which is determined neither by the relative prices of traded goods nor the relative price of nontraded goods. The second bubble busts in 2008 during subprime crisis period, and which is determined by the relative prices of traded goods but not the relative price of nontraded goods. There is no bubble before 2005 as the exchange rate is under fixed regime. As for this result, some expansionary monetary and fiscal policies are required in China since these are the most efficient and effective under a bubble burst scenario.     

基于钱纳里模型的中国经济结构研究——来自1978～2009年的经验证据

自20世纪80年代以来,中国经济一直处于高速增长态势,即使2008年席卷全球经济的国际金融危机也没有阻碍其增长步伐。研究经济增长对经济结构优化的影响具有重要意义0以钱纳里的经济结构分析模型为出发点,运用中国1978～2009年的真实数据实证分析了经济增长和就业人数两大因素对经济结构的影响,并使用弹性系数指标对影响程度进行细致刻画。从实证结论中得到如下启示：一是应继续解放和发展生产力,以经济的高速增长带动经济结构升级和优化;二是保持产业结构按“二、三、一”顺序发展,加强对第三产业的投入;三是通过发展第二、三产业来解决就业压力问题;四是促进经济和谐增长,积极转变经济增长方式。     

财政政策与货币政策有效性实证分析

从2003年下半年开始,物价水平持续上升,中国凸现通货膨胀迹象。经济发展过热,特别是固定资产投资恶性扩张,成为当前中国经济最突出的问题。为遏制投资过热,中国政府采取财政政策和货币政策来调整投资规模,本文运用协整检验和误差修正模型分析两个经济政策在调节固定资产投资规模上的有效性,为合理使用这两种政策提供理论和实证依据。