Analyzing the strategy of Capital Productivity using the ROIC index at different stages of the company's life cycle (A comparative test between different industrial groups of companies accepted in the stock market of Iran)

 Based on the life cycle theory, companies adopt particular economic policies in accordance with each stage of their economic life. That is to say that, they choose from among the available strategies, the one that could enhance their capital productivity. In this research, capital productivity has been investigated regarding the theory of life cycle. In this research, capital efficiency is studied using the ROIC index according to the theory of life cycle. The statistical population included those companies accepted in the Tehran Stock Exchange. Through systematic elimination, a sample of 118 companies has been selected for the purpose of this study during 2011-2021.Findings showed that there is a positive and significant relationship between the stages of growth and maturity with capital productivity. Also it was found that there is a negative and significant relationship between the stage of decline and the capital productivity is. It was witnessed that these relationships were moderated in various industries.