investigation into the relationship between product market competition and residual income of companies listed on the Tehran Stock Exchange

The Tehran Stock Exchange (TSE), as one of Iran's most important capital markets, plays a key role in financing companies and allocating economic resources. Companies listed on the TSE are subject to various competitive pressures, and their financial performance is influenced by several factors, including the intensity of competition in the product market. This study examines the complex relationship between the intensity of product market competition and the residual income of companies listed on the TSE. This research is descriptive in nature and correlational in method. Data were collected using a library research method, with company data gathered from financial statements, explanatory notes, and the TSE monthly bulletin. The study population included companies listed on the TSE from ۲۰۱۳ to ۲۰۱۹ (۷ years) meeting specific criteria. Due to research limitations, ۱۵۹ companies representing ۱۱۱۳ company-years were included in the sample. Multivariate regression analysis was used to test the hypotheses. SPSS ۲۰ and EViews ۸ software were used for data analysis. The results indicate a significant relationship between product market competition and residual income.

Keywords:

Product market competition , Residual income , Information asymmetry , Information uncertainty