the thesis expounds the background and significance of this task firstly, and expatiate the research content and method to the thesis.
论文首先阐明了课题的研究背景和研究意义,并对本文的研究内容和研究方法加以阐述。
then it summarizes the inside and outside academic research results about the industrial structure upgrading. at the end of this chapter, this paper presents its research content and method in brief.
第一章先简述了选题背景、目的及意义,接下来,综述了国内外学者在产业结构高级化方面取得的研究成果,最后简单介绍了此论文的主要研究内容及方法。
compared to existing researches, we extend the research content and method in the following aspects:1. using average return of the market to estimate market return and then to estimate beta;
较之以往的研究,本文在研究内容和研究方法方面作了如下拓展:1 )运用公司收益的算术均值来估计市场收益,再用该指标估计beta值;