M.A. Thesis:

income smoothing and social responsibility and Firm Valuation

Always providing the CSR report can be used as evidence of corporate accountability to public pressure brought to account But many of these accounts is the first step related to the ability to make a profit. Because that is the nature of the company's profits. The aim of this study was to investigate the relationship between income smoothing and social responsibility and assess companies listed on the Tehran Stock Exchange in the period between 2009 to 2015 is 7 years. In this research through systematic sampling, 99 companies were selected as sample and research hypotheses were examined using logistic regression and LR statistic and the coefficient of determination McFadden. The results showed that stock returns can be used as a moderator of the relationship between income smoothing by exposing the role of corporate social responsibility in order to reinforce negative. On the other hand, it was determined, as well as a variable value Moderating the relationship between income smoothing with higher rated corporate social responsibility strengthens the negative side. Finally it was, smoothing with a score lower social responsibility disclosure of listed companies in Tehran Stock Exchange has stronger links in terms of disclosure.

Keywords: Income smoothing, the disclosure of social responsibility, enterprise value, return on equity