fa Mathematical Modeling and Applications of OR Mathematical Modeling and Applications of OR پژوهشی Original Here, scalarization techniques for multi-objective optimization problems are addressed. A new scalarization approach, called unified Pascoletti-Serafini approach, is utilized and a new algorithm to construct the Pareto front of a given bi-objective optimization problem is formulated. It is shown that we can restrict the parameters of the scalarized problem. The computed efficient points provide a nearly equidistant approximation of the whole Pareto front. The performance of the proposed algorithm is illustrated by various test problems and its effectiveness with respect to some existing methods is shown. Bi-objective optimization, Pareto front, Scalarization, Unified Pascoletti-Serafini method, Proper efficiency. 49 61 http://iors.ir/journal/browse.php?a_code=A-10-12-11&slc_lang=fa&sid=1 Mehrdad Ghaznavi مهرداد غزنوی ghaznavi@shahroodut.ac.ir 1111111111 1111111111 Yes Shahrood University of Technology Shahrood University of Technology Mahboobe Abkhizi محبوبه آبخیزی mahbobe.abkhizi@gmail.com. 1111111111 1111111111 No Shahrood University of Technology Shahrood University of Technology