Turnacıgil S. The Impact of Agency Costs on Investment Efficiency: Evidence from Overinvestment and Underinvestment in Borsa İstanbul. JATSS [Internet]. 2026 Sep. 25 [cited 2026 Oct. 23];8(3):373-94. Available from: https://mail.iccsor.com/index.php/jatss/article/view/452