adinehvand, dariuosh, Razini Rahmani, Ebrahim ali, khoddam, Mahmod, Ohadi, Fereydon, hashemizadeh, alhamsadat (2022). Examining the Efficiency Models, Conditional Value at Risk and Mean Absolute Deviation and Particle Swarm Optimization Algorithm under CVAR and MAD risk criterion in Selection Optimal Portfolio Shares Listed Firms on Stock Exchange. *Financial Engineering and Portfolio Management*, 13(52), 101-81.