货币供应量对股票价格的影响研究——一个基于VAR模型的实证分析

货币政策是影响股票价格的重要因素之一。本文采用向量自回归模型,通过Johanson协整检验、Granger因果检验、脉冲响应函数和方差分解等计量经济学手段,研究了狭义货币供应量M1对我国股票价格的影响。研究结果表明,货币供应量对股票价格的影响不显著。     

The Effects of Inflation and Money Supply Announcements on Interest Rates

This paper examines the impact of the money supply and inflation rate announcements on interest rates. Survey data on expectations of the money supply and consumer and producer price indexes are used to distinguish anticipated and unanticipated components of the announcements. This distinction is used to test for the efficiency of the financial market response to the announcements of new information. The results indicate that the unanticipated components of the announced changes in the Producers Price Index and in the money supply have an immediate positive effect on short-term interest rates. The Consumer Price Index announcement has no apparent effect. There is no evidence of a delayed announcement effect. However, there is some indication of a liquidity effect of the money supply change on interest rates. This takes place when reserves are changing and several weeks prior to the information announcement.     

The effects of capital structure change on security prices: A study of exchange offers

This study considers the impact of capital structure change announcements on security prices. Statistically significant price adjustments in firms' common stock, preferred stock and debt related to these announcements are documented and alternative causes for these price changes are examined. The evidence is consistent with both corporate tax and wealth redistribution effects. There is also evidence that firms make decisions which do not maximize stockholder wealth. In addition, a new approach to testing the significance of public announcements on security returns is presented.     

Options trading volume and stock price response to earnings announcements

We examine the effect of options trading volume on the stock price response to earnings announcements over the period 1996–2007. Contrary to previous studies, we find no significant difference in the immediate stock price response to earnings information announcements in samples split between firms with listed options and firms without listed options. However, within the sample of firms with listed options stratified by options volume, we find that higher options trading volume reduces the immediate stock price response to earnings announcements. This conforms with evidence that stock prices of high options trading volume firms have anticipated and pre-empted some earnings information in the pre-announcement period. We also find that higher abnormal options trading volume around earnings announcements hastens the stock price adjustment to earnings news and reduces post-earnings announcement drift.     

MONEY SUPPLY ANNOUNCEMENTS AND INTEREST SENSITIVE STOCKS

Much of the money announcement literature provides evidence that there is a significant response of nominal interest rates to unexpected changes in the money stock, especially in the October 1979-October 1982 period. These money announcements provide a proxy for unexpected interest rate changes which can be used in a novel test for the interest sensitivity of stocks. Using the response of disaggregated stock price data to money announcements, we reach two major conclusions. First, that the interest rate response observed in the money announcement literature was predominantly a change in real rates. Second, an unusual group of stocks are excessively sensitive to these real rate changes and many groups of stocks that might logically have been expected to be sensitive are not.     

Stock price behavior surrounding stock repurchase announcements: Evidence from Japan

This paper examines stock price behavior surrounding announcements of stock repurchases made by Japanese firms from 1995 to 1998. Our analysis shows that, much as in the case of the U.S. markets, stock prices in Japan go up in response to stock repurchase announcements. We also find that there is no significant difference between the market reaction to the announcement for intention of repurchase execution and the market reaction to the announcement of an article alteration to allow stock repurchases. On the other hand, there is a significant difference in the pre-announcement period returns motivating these two announcements. While a large decline in stock price will motivate a firm to execute a stock repurchase, a smaller price decline will motivate a firm to merely alter its articles of association to allow future repurchases.     

Do monetary policy announcements affect stock prices in emerging market countries? The case of Thailand

We examine the effect of monetary policy announcements in Thailand, which is one of emerging market countries in Asia, on stock prices at the firm level. We find that the expected change, rather than the unexpected change, in interest rates affects stock prices. The stock price response to the interest rate announcement is asymmetric. For instance, the relation between interest rate surprises and stock prices is conditional on the direction of the interest rate change. In general, macroeconomic conditions and firm characteristics cannot explain the stock price reaction to the announcement. In addition, stock prices of firms in different industries appear to react heterogeneously to the interest rate announcement.     

The Influence of Monetary Conditions on the Response of Interest Rate Futures to M1 Releases: 1976–1998

Abstract:   This study examines the response of T‐bill and T‐bond futures prices to weekly M1 announcements over the period March 1976 to November 1998 conditioned upon monetary operating procedures and the stance in monetary policy. In concurrence with previous studies, this study finds that unanticipated increases in M1 are negatively related to changes in T‐bill and T‐bond futures prices. However, when the data is sorted by monetary regime, the stance in monetary policy, and direction of money surprise, we find evidence to support the several competing theories historically suggested by Cornell (1983b) to explain the impact of money supply announcements.     

Wealth redistributions or changes in firm value: An analysis of returns to bondholders and stockholders around dividend announcements

Past studies indicate that stock prices are affected by announcements of unexpected dividend changes, i.e., unexpectedly large dividends are associated with positive stock price response. Two explanations of this empirical regularity, ‘the information content hypothesis’ and the ‘wealth redistribution hypothesis’, imply different bond price behavior around dividend announcements. The information content hypothesis predicts a positive bond price response to unexpectedly large dividends, while the wealth redistribution hypothesis predicts the opposite. This paper distinguishes between the relative importance of the two hypotheses by empirically investigating bond price behavior around dividend announcements. The evidence presented is consistent with the information content hypothesis. However, the gains associated with positive information are captured by the stockholders, while the losses are shared with the bondholders.     

金融状况指数显示：经济低位增长，物价相对平稳

金融状况指数（FCI）是基于货币价格和资产价格等变量编制的综合性指标,以弥补货币供应量、利率等传统指标的不足。文章选取货币供应量、利率、汇率、股票指数和房地产价格等指标,采用主成分分析方法构建FCI。结果显示,从FCI本身的走势看,目前处在下行态势,低于近十年的平均值;从其领先经济指标的性质判断,未来经济增长将低位平稳运行,物价上行压力不大。     

基于货币因素的我国大宗商品价格波动影响机理——铜市场实证

基于长期与短期两个视角,采用2001~2013年的月度数据,通过构建协整检验、广义脉冲响应函数及方差分解等方法,考察了主要货币因素：货币供应量与利率对我国期铜价格的动态影响,结果表明：货币供应量、利率与期铜价格之间存在长期均衡关系;在短期内,货币供应量对期铜价格具有正向影响,而利率对期铜价格的影响总体为负,且利率的影响作用相对较大。     

DEBT REFUNDING AND SHAREHOLDER WEALTH: THE PRICE EFFECTS OF DEBT-FOR-DEBT EXCHANGE OFFER ANNOUNCEMENTS

This study examines the impact of debt refunding on common stock prices for a sample of 48 exchange offers announced from 1970 through 1981. Exchange offer announcements do not have a significant impact on average common stock returns but appear to produce idiosyncratic share price effects. Refunding-induced price effects were unrelated to several exchange offer characteristics including tax shield increases, exchange offer premia, and transaction costs of refunding. Common stock excess returns were negatively related to reductions in debt service payments and relaxation of dividend payment constraints. Thus, the evidence is consistent with theories predicting that certain debt refundings generate negative information-signaling price effects.     

RESPONSE OF FINANCIAL MARKETS TO ANNOUNCEMENTS OF THE AUSTRALIAN CURRENT ACCOUNT BALANCE

This paper documents the response of exchange rates, interest rates and stock prices to monthly announcements of the Australian current account balance. Survey data on market participants' expectations and forecasts generated from ARIMA time series models are used to identify the unexpected component of the announcements. The study also controls for day-of-the-week effects that have been documented in the Australian equity market The results support the efficient market hypothesis and show a significant depreciation of the Australian dollar in foreign exchange markets and a significant rise in both short- and long-term interest rates to announcements of larger than expected current account deficits. The study was, however, unable to find evidence of a significant stock price response to the current account announcements.     

The Valuation Effects of Warrant Extensions

In this paper, we examine the warrant price and stock price reactions to the announcement of warrant life extensions. As predicted by option-pricing theory, warrant prices increase in response to an extension. Our principal finding is that the stocks of firms making the extension announcements experience positive abnormal returns on average. We interpret the evidence as supportive of an anticipation hypothesis in which the market perceives the decision to extend the warrants' expiration date as a favorable indication for the stock price before the subsequent expiration.     

The Impact of Oil Price Shocks on the Returns in China’s Stock Market

The main goal of this paper is to study the relationship between oil price shocks and mainland China’s stock market. From empirical study, we have found that the impact of oil price shocks on stock prices in China has been mixed. In contrast to the conventional wisdom that higher oil prices may cause lower stock prices, positive shocks to oil-market-specific demand resulted in both higher real oil prices and higher stock prices, which helps explain the boom of the Chinese stock market as oil prices were increasing in 2007. However, global oil demand and supply shocks had no significant effects.     

通货膨胀、货币供给与房地产市场关系的实证研究——基于后危机时代数据的考察

我国在2009年底推出的经济政策导致房价和物价不断攀升,央行虽然采取紧缩措施进行应对,但物价和房价仍处高位。对我国货币供给、通货膨胀及房地产之间关系进行理论和实证分析的结果显示:货币供给增加能引起物价和房价上涨;房价上涨能引起物价上涨等。因此,为了更好地应对物价波动,货币政策需关注资产价格,同时应谨慎使用货币政策应对资产泡沫,并密切注意货币流动结构,维持货币供给流向与实体经济发展相适应。     

关于我国资产价格与货币供应量关系的实证研究

随着金融市场深化与资本市场发展,资产价格波动对货币政策提出新的挑战。该文在回顾相关理论研究的基础上,从完善资产价格统计范围的角度,对我国资产价格与货币供应量的实证关系进行了研究。结果发现,资产价格变动确会对货币政策中介目标产生影响,且不同资产价格对不同层次货币供应量影响不一。建议密切关注资产价格,提升货币政策的前瞻性。     

中国的股票价格波动及货币政策反应

本文在阐述中国的股票价格波动情况及成因的基础上，分析中国股票价格的信息功能，并对中国的股票价格与各层次货币供应量进行协整和Granger因果检验。结果表明，从总体上看，中国的股票价格在1995年之后，具备一定的信息功能；股票价格与各层次货币供应量之间存在协整、因果关系。由此，货币当局应对股票价格波动做出反应。文章以前瞻性利率规则为基础，运用IS—PC—AP模型，采用GMM法估计出中国包含股票价格因素的货币政策反应函数。     

The information content of cash dividend announcements in a unique environment

Due to its distinctive institutional background, Oman offers a valuable opportunity to examine stock price reactions to dividend announcements. In Oman, (1) there are no taxes on dividends and capital gains, (2) there is a high concentration of share ownership, (3) there is low corporate transparency, and (4) firms frequently change their dividends. Our results show that announcements of dividend increases are associated with increased stock prices, while announcements of dividend decreases cause decreases in stock prices. Firms that do not change their dividends experience insignificant negative returns. These results contradict tax-based signaling models, which argue that higher taxes on dividends relative to capital gains are a necessary condition for dividends to be informative.     

Volatility Information Trading in the Option Market

This paper investigates informed trading on stock volatility in the option market. We construct non-market maker net demand for volatility from the trading volume of individual equity options and find that this demand is informative about the future realized volatility of underlying stocks. We also find that the impact of volatility demand on option prices is positive. More importantly, the price impact increases by 40% as informational asymmetry about stock volatility intensifies in the days leading up to earnings announcements and diminishes to its normal level soon after the volatility uncertainty is resolved.