关键词: 微粒群算法, 项目经济评价, 功效系数, 协调度

Abstract: The traditional project economic evaluation assumes that the project estimator makes the “maximal” decisions in clearly-defined and also explicit conditions.However，in real life the estimator is bounded rational，estimation dimension is diverse，and the final decision needs coordination.Therefore，from bounded rationality theory perspective，this article introduces the efficiency coefficient into the project economic evaluation，gives the degree of coordination in three dimensions（in the known information，risk information and also uncertain information environment），and then establishes coordination models for “exclusive” and also “independent” project combinations.In the end，this article applies the particle swarm optimization to solve the “independent” project economic evaluation coordination model，means to make meaningful explorations and also improvements for the traditional project economic evaluation methods.

Key words: Particle Swarm Optimization（PSO）, project economic evaluation, efficiency coefficient, degree of coordination