AN ASSESSMENT OF THE RISK AND RETURN OF FRENCH COMMON STOCKS

In this paper the relationship is examined between the average return and the risk of a sample of 144 French common stocks which traded continuously over the decade 1969–1979. Although it was found that a negative relationship existed between average return and systematic risk, sufficient evidence could not be gathered to reject the hypothesis that the pricing of French common stocks conforms to the Capital Asset Pricing Model. The nature and implications of the observed negative risk-return trade-off are discussed.     

市场有效理论及我国股票市场有效性的实证检验

我国股票市场近年来出现的一系列事件引发了人们的深刻思考,而传统的资本市场理论已无法圆满地解释我国股票市场现有的发展程度、发展阶段及有效性等问题.为此,本文提出了市场有效性理论.利用该理论,作者通过抽样统计,对我国股票市场的有效性进行了实证分析.本文的重点在于研究我国股票市场的发展层次即其有效性层次.首先通过随机游程和股价自回归检验方法得出了我国股票市场处于弱型有效的结论,然后针对目前关于有效性层次方面的争论,用事件研究法阐述了如下观点:我国股票市场目前正处于弱型有效市场层次,但并不具有半强型有效市场的特点.     

AN EMPIRICAL INVESTIGATION OF STOCK DIVIDENDS-IN-KIND

We investigate share price reactions to announcements of dividends payable in the common stock of corporations different from the issuing firm. We find that firms that declare these dividends (typically investment companies) experience positive abnormal returns upon announcement. We also find that such dividends are more likely to be declared when the shares to be distributed have peaked in value. Consistent with this finding, we document negative announcement-period abnormal returns for firms having their shares distributed. Additional tests reveal that prices respond more negatively when the information signal is strongest, when outside ownership is more dispersed, and when management is more entrenched.