投资者情绪、市场波动与股市泡沫

我国投资者情绪容易受到噪音交易者影响,其他类型交易者可利用噪音交易者的交易策略在博弈中获取超额利润,这为投机性泡沫的产生提供了微观基础。在市场波动机制中,投资者情绪与股价变化存在动态关系,股价泡沫存在内在持续性,引发市场正反馈效应,从而促成投机性泡沫的生成。     

房地产泡沫的虚拟经济决定论及其实证检验

对于房地产泡沫的理论解释的研究有很多,主要是从实体经济层面、虚拟经济视角、产业经济学这三个角度进行研究,目前大多数是从第一奈路径展开。文章对一些比较具有代表性的理论假说进行总结分析,并在此基础上利用来自中国和日本的数据对房地产泡沫的虚拟经济决定论进行实证检验,最后给出自己的意见和看法。     

信贷扩张、资产价格泡沫及在中国的经验分析

资产价格泡沫源自信贷扩张,信贷扩张对资产价格的作用机制是借款人的风险转移行为.从经验证据上分析了我国信贷扩张对房地产价格存在的因果关系及商业银行中长期存在流动风险和结构不合理等问题.     

房地产泡沫评价方法与预警分析

介绍了收益还原法、市场修正法和综合指标评价法三种房地产泡沫评价方法。前两种方法存在一定的不足之处,而综合指标评价法能够更全面考虑各个因素对房地产泡沫的影响,且能更准确的预测出房地产泡沫的程度。并在此基础上提出了房地产泡沫预警方法,希望能够对房地产泡沫加以更好地预测和防范。     

泡沫前后的政府政策选择

在经济全球化的背景下,金融资本的国际化流动不断加强,促成了国际金融市场的联动性和互相影响程度不断加强.而金融市场的迅速发展和资产证券化程度的提高,使得金融对于经济的渗透程度和影响程度加大.伴随着经济周期的扩张和收缩,相应资产价格的泡沫的形成和破灭的过程也对经济产生巨大的影响,政府在这样的不同周期阶段的政策选择对于平滑经济和金融市场风险显得十分重要.文章作者试图探讨政府在泡沫形成期和泡沫破灭期的理性政策选择.     

基于EVA的中国纺织业上市公司股价泡沫分析

本文使用基于EVA的企业价值评估方法,对2006年年末以及2007年第三季末中国纺织业上市公司的股价泡沫状况进行了实证研究。通过对沪深两地纺织业上市公司的绝对泡沫以及泡沫度的计算发现,2006年年末中国纺织业上市公司的股票价格两极分化严重：大部分股票价格偏离价值形成泡沫,还有部份股票价格低于价值而被低估。而2007年第三季度末股价泡沫则非常明显,绝大部份公司股价存在泡沫。     

Asymmetric Fluctuating Behavior of China's Housing Prices

The present study explains the reasons for the imbalanced development of the Chinese housing market. Using the quantile autoregression unit‐root test, we examine housing prices in China's five major cities. The results show that the rising and falling of housing prices in these cities exhibits asymmetric reversion. When housing prices fall, market capital is highly sensitive to housing prices, and housing prices resist the pressure to fall further. However, when housing prices rise, the housing market becomes imbalanced, with housing prices tending to overreact in an upturn. The results of this study indicate that when housing prices rise irrationally, the government should intervene in the housing market promptly to prevent housing bubbles.     

Convertible bonds issued in the bear market period: evidence from Taiwan

We argue that the behaviour of enterprises might be modified or even changed completely after black swan events occur. We explore why high-tech firms preferred to issue convertible bonds in 2001–2003, the bear market period after the tech bubble in Taiwan. We show that firms issuing convertible bonds are those with low directors’ holding ratio and high debt ratio. Results also reveal that corporate governance was worse in the firms that issued convertible bonds, as revealed by the finding that the directors’ holding ratio of these issuing firms declined considerably. This finding also implies that corporate governance issues become more serious after black swan events.     

Subprime lending and the housing bubble: Tail wags dog?

The cause of the “housing bubble” associated with the sharp rise and then drop in home prices over the period 1998–2008 has been the focus of significant policy and research attention. The dramatic increase in subprime lending during this period has been broadly blamed for these market dynamics. In this paper we empirically investigate the validity of this hypothesis vs. several other alternative explanations. A model of house price dynamics over the period 1998–2006 is specified and estimated using a cross-sectional time-series data base across 20 metropolitan areas over the period 1998–2006. Results suggest that prior to early 2004, economic fundamentals provide the primary explanation for house price dynamics. Subprime credit activity does not seem to have had much impact on subsequent house price returns at any time during the observation period, although there is strong evidence of a price-boosting effect by investor loans. However, we do find strong evidence that a credit regime shift took place in late 2003, as the GSE’s were displaced in the market by private issuers of new mortgage products. Market fundamentals became insignificant in affecting house price returns, and the price-momentum conditions characteristic of a “bubble” were created. Thus, rather than causing the run-up in house prices, the subprime market may well have been a joint product, along with house price increases, (i.e., the “tail”) of the changing institutional, political, and regulatory environment characteristic of the period after late 2003 (the “dog”).     

The Chinese warrant bubble: A fundamental analysis

We investigate the information content in Chinese warrant prices based on an option pricing framework that incorporates short‐selling and margin‐trading constraints in the underlying stock market. We show that Chinese warrant prices can be explained under this pricing framework. On the basis of this new model, we develop a price deviation measure to quantify stock market investors' unobserved demand for short selling or margin trading due to market constraints. We find that warrant‐price deviations are driven by underlying stock valuation to a great extent. Chinese warrant prices, save for the time around expiration dates, are better characterized as derivatives than as pure bubbles.