List of Articles efficiency of investment Open Access Article Abstract Page Full-Text 1 - comparative study of dynamic performance of investment according to method (garch)and kalman filter Javad Yousefi Brahman JAVAD ramezani Mehdi Khalilpour Open Access Article Abstract Page Full-Text 2 - The effect of forward-looking non-financial information (FNFI) on corporate investment efficiency & financing constraint Allah Karam Salehi Open Access Article Abstract Page Full-Text 3 - Evaluate the Economic Consequences of the Social Responsibility of Firms (With Emphasis on Investment Efficiency) Masoumeh Shahsavari Rasoul Salmani Open Access Article Abstract Page Full-Text 4 - Analysis the Effect of Inefficiency in Labor Investment on Tax Avoidance in a Selection of Export Companies in Tehran Stock Exchange shahryar zaroki Mohamad Abdi Seyyedkolaee sudabe Bararjani 10.30495/eco.2022.1958426.2660