University of Isfahan Journal of Asset Management and Financing 2383-1189 1 3 2014 02 20 The effect of changes working capital on investment opportunities The effect of changes working capital on investment opportunities 99 118 19857 FA Mansor Gharkaz Azad University Ali Abad Katol Navvab Rezaei Azad University Science and Research Branch (Tehran) Journal Article 2016 06 14 The purpose of this study was to evaluate the effect of changes in working capital on investment opportunities are listed companies in Tehran Stock Exchange. For this purpose, we studied a panel data of 151 listed companies in Tehran Stock Exchange, in a seven-year period (1384-1390). We use Lymr and Hausman test model (fixed effects or random effects) was determined from regression was used to test the hypotheses. The results of the study show that There was a significant and negative relation between changes in a company's working capital and investment opportunities .Investment Opportunities , Changes Working Capital , ratio of market to book value of equity, Tobin Q ratio, ratio of earnings to price per share The purpose of this study was to evaluate the effect of changes in working capital on investment opportunities are listed companies in Tehran Stock Exchange. For this purpose, we studied a panel data of 151 listed companies in Tehran Stock Exchange, in a seven-year period (1384-1390). We use Lymr and Hausman test model (fixed effects or random effects) was determined from regression was used to test the hypotheses. The results of the study show that There was a significant and negative relation between changes in a company's working capital and investment opportunities .Investment Opportunities , Changes Working Capital , ratio of market to book value of equity, Tobin Q ratio, ratio of earnings to price per share https://amf.ui.ac.ir/article_19857_c0cf4a8f9a0e5db72bbef2e6887d1cf8.pdf