摘 要
随着中国资本市场逐渐与世界接轨,中国股市发生着翻天覆地的变化。虽然,很多学者们早已探究出上市公司财务信息与股票价格的相关性,但是,如今的股市大不相同,前辈们研究得出的结论是否依然成立,上市公司财务信息与股票价格是否呈现新的相关关系,从前使用的财务指标是否还具有代表性,又有哪些新的财务指标被发觉并广泛运用,这些指标的发展趋势如何,这些都是我们在这新的时代背景下,值得重新思考的问题。
围绕着以上几个问题,我选取2006年到2010年沪深两市医药行业中94家上市公司的财务数据和年平均股票价格作为研究样本,对财务指标与股票价格的相关性进行研究。研究分为四个部分,第一部分,介绍了本论文的研究背景、研究意义以及研究的技术路线,并对国内外相关研究成果进行了综述;第二部分,从理论方面,对会计信息与股票市场的关系进行探讨;第三部分,探究了医药行业的特征以及近几年医药行业上市公司的股价走势;第四部分,则对会计信息与股票价格的相关性进行了实证分析,分别运用了单元回归分析法、时间序列分析法以及多元回归分析法。最终得到每股收益、每股未分配利润、净资产收益率、营业利润率、流动比率、资产负债率、现金流量比率等几个财务指标与股票价格相关性最强,以及它们从2006年到2010年的发展趋势并加以了解释说明。
通过以上研究,得出了目前医药行业上市公司财务指标与股票价格的相关关系,解决了亟待解决的问题,为投资者投资提供了一定的参考依据。最后,值得提出的是,市场还在不断地发展变化,此时得出的结果并不是一成不变的,需要根据以后市场的变化不断进行修正。
关键词:财务指标;股票价格;回归分析;时间序列分析
ABSTRACT
With the development of the capital market in China, the stock market has changed numerously. Although many scholars have explored the relation between the financial data and quotations on the stock market and got some conclusions, the situation in the market has changed nowadays and many new questions appear: what the relation would be under the new situation, are there any new financial data used widely now and so on.
In order to tackle these problems, I choose the financial date of 94 listed pharmaceutical industry companies of Shanghai and Shenzhen Stock Exchange and average annual stock 2006 to 2010 as the sample. This text is divided into four parts: the first part reviews previous studies related to financial indexes and stock price; the second part provides some theories about the relation of financial indexes and stock price; the third part discusses the development and characteristics of the pharmaceutical industry stock market; the fourth part presents the data and preliminary analysis and concludes the paper. Through the dependent analysis of the individual index, get the earning per share (EPS), retained earnings, return on net assets, operating margin, current ratio, asset-liability ratio, cash flow ratio have the strongest relation with stock price; get the development trend of above-mentioned financial indexes from 2006 to 2010.
Through the research above, got the new relation between the stock market and financial index under the current situation, and have solved the questions that urgently to be studied, thereby offering investors some precious invest references. At last, the one that need to point out is that because of constant development of market, the result of the study should revised constantly following the guidelines of the market.
KEY WORDS: Financial Index; Stock Price; Regression Analysis; Time Series Analysis
目 录
第一章 绪论…………………………….. 1
1.1 研究背景及研究意义………………… 1
1.2 国内外文献综述……………………. 1
1.3 研究方法与技术路线………………… 4
第二章 会计信息与股票市场的相关理论研究……. 5
2.1 信息与股票市场关系的基本理论………… 5
2.2 会计信息作用于股票市场的机理………… 7
第三章 医药行业及其股票的特点和发展………. 11
3.1 医药行业的特征…………………… 11
3.2 医药行业股票特点…………………. 12
3.3 医药行业发展状况…………………. 13
3.4 医药行业上市公司股价走势………….. 14
第四章 会计数据与股票价格的实证分析………. 15
4.1 样本的选取………………………. 15
4.2 模型的建立………………………. 15
4.3 模型中解释变量Xi的选取……………. 15
4.4 财务指标的单因子回归……………… 16
4.5 单因子回归小结…………………… 19
4.6 主要财务指标相关性的时间序列分析……. 20
4.7 财务指标的多元回归……………….. 27
4.8 结论与启示………………………. 28
参考文献…………………………………. 30
外文资料
中文译文
致谢