Principal Factors Impacting Labor Productivity of Public Construction Projects in Palestine: Contractors’ Perspective

The study aims at identifying the factors aecting labor productivity of public construction projects in the West Bank in Palestine from the contractors' viewpoint. To do so, 50 contractors working in public construction completed a structured questionnaire survey ranked the identified factors according to their level of severity and frequency. 40 factors were identified through a detailed literature review. Factors of similar nature were grouped together; giving rise to five main groups, that are: labor, managerial, materials and equipments, environmental, and financial. The analysis of the identified factors indicated that the top ten important factors negatively aecting