货币反替代及其对中国股市的冲击

货币反替代是指在一国的经济发展过程中,居民在本币坚挺且存在升值趋势下,普遍看好本币的币值或在本币货币资产收益率明显高于外国货币资产收益率时,改变原来对外币的偏好,从而抛售外币资产,持有本币资产,使外币过分集中于中央银行的行为和现象。在对热钱的内涵进行辨析的基础上,分析货币反替代的目的和渠道,并对1990~2007年货币反替代率进行测度,进而实证检验货币反替代对中国股市的冲击。研究发现:货币反替代规模较大、流动速度加快、反转性强;货币反替代与国内股票价格正相关,即货币反替代会推动国内股价上涨;当货币反替代出现反转时,则会引起国内股价下跌。     

Banking,currency, stock market and debt crises in Spain, 1850–1995

What type of crisis is generated when debt increases? We extend the literature by framework by introducing currency and stock market crises in the analysis. We apply our proposal to the case of Spain, since this is a country that has experienced a very important amount of financial crises from the nineteenth century onwards. We find the same results as the previous literature for the determinants of banking and debt crises but substituting external and public debt with perpetual debt and where perpetual debt has a less important role than crises in the private sector. Moreover, we find evidence in favour of the hypothesis that currency crises depend strongly and positively on financial centre crises and negatively and mildly on perpetual debt. We justify the negative relalionship due to an inflation tax. We also find evidence in favour of the hypothesis that stock market crises depend only positively and strongly on financial centre crises.     

Momentum or market? Determinants of large stock price changes in an emerging market

The aim of this study is to investigate the determinants of large price changes in Turkey. We also provide additional evidence on determinants of large price changes in different macroeconomic environments, specifically on the pre-crisis and post-crisis periods. Using recurrent event analysis with stratified observations and frailty effects, our findings suggest that momentum has a significant impact on large price changes during both pre-crisis and post-crisis periods. However, the impact of market is more significant on the estimation of large price declines in the pre-crisis period and of large price increases in the post-crisis period. Additional findings suggest that liquidity and market-to-book ratio have positive, firm size has a negative impact on likelihood of large price changes regardless of the direction of the stock price change and macroeconomic environment. Findings of this study provide new insights into the understanding of large price changes in an emerging market.     

Realized EquiCorrelation: a bird’s-eye view of financial stress on equity markets

This article addresses the issue of measuring the level of aggregate financial stress on stock markets, which is a central issue for investors and policy-makers. To this end, Realized EquiCorrelation (REC) is obtained by plugging realized volatility as an input into the Dynamic EquiCorrelation (DECO) model where both the continuous and jump components of realized volatility are considered. An application is provided for the 20 major stock markets over January 2000–May 2014 using intra-day data. The results remarkably pick up financial stress periods.     

基于分层条件Copula的金融危机传染路径研究

本文采用分层条件Copula理论来研究次贷危机和欧债危机下的危机传染路径问题。在研究中采用t-GARCH (1,1)模型拟合各个金融市场的股指日收益率,以条件Copula分析两次危机下中国大陆股市与美国股市、英国股市、日本股市、台湾股市、香港股市2005年1月至2012年7月间的风险传染关系。实证研究表明：次贷危机期间美国股票市场将危机传染到香港股票市场,再由香港股票市场传染其他亚洲股票市场。而在欧债危机期间英国股票市场分别直接传染美国股票市场和香港股票市场,再通过香港股票市场对其他亚洲股票市场传染。两次危机下香港股票市场均是亚洲股票市场受到危机传染的媒介,因此我国在制定防范金融危机传染政策时应考虑对香港股票市场的控制,在传播层面上控制金融危机对我国的传染,减少对我国金融系统的冲击。     

中国A股市场个股收益影响因素的实证分析

选取公司市值、账面市值比、净营运资产、市净率和管理费用作为解释变量来构建面板数据模型,利用2007—2011年我国A股市场中573家上市公司的面板数据进行回归分析,探析这些财务指标对中国A股市场的股票月收益率的解释力度。研究结果显示:上述解释变量对股票月度收益率具有显著影响,说明这些财务指标对股票收益的解释力度较强;公司市值和账面市值比与股票收益率正相关,在研究期间存在明显的账面市值比效应;净营运资产、市净率和管理费用与股票收益率负相关;中国股票市场是一个弱式有效市场。     

Dynamic correlation and equicorrelation analysis of global financial turmoil: evidence from emerging East Asian stock markets

This study investigates the dynamic conditional correlations (DCCs) between eight emerging East Asian stock markets and the US stock market and analyses the dynamic equicorrelation among these nine stock markets. We find a significant increase in the conditional correlations and equicorrelation in the first phase of the global financial crisis. We refer to this finding as contagion from the US stock market to the emerging East Asian markets. We also find an additional significant process of increasing correlations and equicorrelation (herding) in the second phase of the global financial crisis. Further, we employ two new models, namely DCCX-MGARCH (a DCC Multivariate GARCH model with exogenous variables) and DECOX-MGARCH (a dynamic equicorrelation multivariate GARCH model with exogenous variables), to identify the channels of contagion. We find that an increase in the VIX Index increases the conditional correlations and equicorrelation, while increases in TED spreads decrease the conditional correlations of six emerging East Asian countries with the USA. We compare the accuracy of the conditional correlation estimates of the DCC and DCCX models (or DECO and DECOX models) by constructing a loss function. We find that the DCCX (DECOX) model provides more accurate conditional correlation estimates than the DCC (DECO) model by extracting additional information from exogenous variables.     

略论QFII对中国股市的垂直影响——基于沪深A股指数收益率的变化

QFII制度对中国股市的影响,已有的文献着眼于水平视角,着重通过对国内投资同行(尤其是基金)的交易行为和投资对象(上市公司)的内外治理影响进行研究。在概念准备的基础上,基于沪深A股市场的指数变化,量化了QFII对中国股市垂直影响依次推进的三个层次,实证得出的具体影响分别为负的一定的审批政策效应、正的微弱的资金数量效应和负的比较显著的策略溢出效应,提出适度加大QFII的资金审批额度、恰当改进股票投资税收政策和完善信息披露机制的监管等改进建议。     

Renewable energy innovations in Europe: a dynamic panel data approach

We investigate the determinants of renewable energy R&D intensity and the impact of renewable energy innovations on firm performance, using several dynamic panel data models. We estimate these models using a large data set of European firms from 19 different countries, with some patenting activity in areas related to renewable energies during the 1987 to 2007 period. Our results confirm our priors on the determinants of the rapid development of renewable energy R&D intensity during the past decades. Additionally, we find evidence that renewable patent intensity has a significant dynamic impact on the stock market value of firms.     

网络搜索对股票市场的预测能力:理论分析与实证检验

网络搜索数据记录了数以亿计的搜索关注与需求,为研究市场交易行为提供了必要数据基础。本文以股票市场为例,首先从微观的投资者行为视角建立一个理论框架,揭示了网络搜索与股票市场之间存在一定的先行——滞后关系。然后,在时差相关分析的基础上,根据经济含义将搜索数据合成为三类搜索指数:股民行动指数、市场行情指数、宏观形势指数。实证检验得出,搜索指数与上证指数年收益率正相关且存在协整关系。在长期趋势中,三类搜索指数分别每增加1个百分点,年收益率将增加0.22、0.56、0.83个百分点。进一步的Granger因果关系检验表明,搜索指数对上证指数年收益率具有显著的预测能力。     

The long-run relationship between stock return dispersion and output

Based on the rational that some industry groups are more closely linked to the business cycle than others, we re-examined a previous analysis on the long-term relationship between stock return dispersion by industry and Gross Domestic Product (GDP), which evaluated data until 1987 by extending it to 2008. Using Mean Square Forecast Errors (MSFE) statistics, we find that incorporating the return dispersion in Vector Autoregressive (VAR) models enhances their forecasting power for output (GDP) in the long run. This article also determines that the relationship between stock return dispersion by industry and GDP is tenuous in the recent decade from 1999.     

金融危机下宏观政策发布对我国股市的短期冲击效应研究

本文在单指数模型的基础上,利用Chow Test法和引入虚拟变量的方法,对2008年我国为应对全球金融危机而计划实施的货币政策和财政政策的信息公布对沪市行业板块的短期冲击效应进行了实证研究。结果显示,在金融危机引发经济衰退的背景下,尽管我国公布了强有力的财政政策和货币政策,但除个别板块在个别时点出现波动外,基本上未对我国股市各行业板块造成短期冲击影响。这表明,金融危机下宏观调控政策信息的公布在短期内对股市的刺激效果并不会太显著。     

Rational expectations in the foreign exchange market? Some survey evidence

Although many papers have already proposed empirical models of currency crises, the timing of such crises has received relatively little attention so far. Most papers use indeed a static specification and impose the same lag structure across all explanatory variables. This, by construction, prevents from specifically timing the crisis signals sent by the leading indicators. The objective here is to fill this gap by considering a set of dynamic discrete choice models. The first contribution is to identify how early in advance each explanatory variable sends a warning signal. Some indicators are found to signal a crisis in the very short run while others signal a crisis at more distant horizons. The second contribution is to show that state dependence matters, albeit mostly in the short run. The results have important implications for crisis prevention in terms of the timeliness and usefulness of the envisaged policy response.     

消费者信心指数与股票市场收益的实证研究

基于行为金融学的视角,研究消费者信心和股票市场收益的互动关系,结果发现消费者信心指数与殷市收益具有较强的相关性。利用脉）辛响应和方差分解分析消费者信心与股市收益之间的互动关系,结果表明,消费者信心指数能预测一部分收益,股市收益与消费者信心指数间的冲击具有不对称性。     

The influence of Taiwan’s stock market on Bitcoin’s price under Taiwan’s monetary policy threshold

ABSTRACT

This study uses a smooth transition autoregressive model with exogenous variables (STARX) to investigate whether there is a nonlinear relationship between Bitcoin and Taiwan’s stock market taking into account Taiwan’s monetary policy threshold during 2 February 2012 to 31 August 2019. The statistical results show there is a threshold effect and confirm a nonlinear relationship between Taiwan’s stock market and Bitcoin, with variations over time and across Bitcoin and Taiwan’s stock market. Specifically, we find that Bitcoin responds asymmetrically to Taiwan’s stock market according to the threshold value. Furthermore, the return on the closing price of TAIEX with a lag of two periods under Taiwan’s monetary policy threshold has a nonlinear impact on the return on the closing price of Bitcoin.