TY - JOUR AU - Rahnama Roodposhti, Fereydoun AU - Sadeh, Ehsan AU - Fallahshams, Mirfeiz AU - Ehteshamrasi, reza AU - Jalilian, jamil TI - A Portfolio Optimization Model for a Private Equity Investment Company under Data Insufficiency Condition with an Artificial Bee Colony Meta-heuristic Approach JO - Financial Engineering and Portfolio Management VL - 9 IS - 35 SP - 77 EP - 104 PY - 2018 DO - ER -