期刊名称：International Journal of Economics and Finance
印刷版ISSN：1916-971X
电子版ISSN：1916-9728
出版年度：2011
卷号：3
期号：2
页码：263-263
DOI：10.5539/ijef.v3n2p263
出版社：Canadian Center of Science and Education
摘要：This paper aims to extend the paper by Saleh and Bitar (2009) by addressing whether variation in stock returns can be explained by differences in industry concentration. The paper concludes that firms operate in highly concentrated industries earn lower returns and less risk than those operate in highly competitive industries. Furthermore, the paper provides evidence to suggest that investors in Amman Stock Exchange cannot benefit from a trading strategy based on industry structure
