List of Articles ناکارایی سرمایهگذاری Open Access Article Abstract Page Full-Text 1 - 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 2 - The effectiveness test of customer concentration on cash holdings adjustment speed in listed companies in Tehran Stock Exchange Mohammad Amin Rastegar Open Access Article Abstract Page Full-Text 3 - Assessment the Impact of Inefficient Investment Decisions on the Relationship between Conservatism and New Investment Mohammad Hassani Saeid Asadian Feyli 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