Can the Industry Index Become Another Market Variable? Empirical Evidence from the Listed Banks in Shanghai Stock Exchange
To identify the variables that explain the rate of return of stock, Sharpe developed a simplified single-index model in 1963, and thereafter more models, such as multifactor model, were constructed to explain the relationship. According to common sense, we can find the common movement of stocks prices in the same industry. Several researchers have found and examined it. In this paper, we construct a new model, which we call the double-index model and introduce a new market variable, which is called the industry index. Through comparison of Adjusted R Squares and correlations of residuals across the bank stocks between the single-index model and the double-index model, we find the industry index improve the explanation power of the model.
the single-index model the double-index model industry index industry variable Shanghai Stock Exchange listed bank
Fengjun Liu
College of Business HongHe University, HU Mengzi, China
国际会议
武汉
英文
315-319
2011-10-17(万方平台首次上网日期,不代表论文的发表时间)