This study developed a system dynamics model for determining the outcome for outsourcing work in a construction project. A literature review was performed on the application of system dynamics for outsourcing of resources in construction projects. For the most part, the reviewed papers indicate the additional construction resources provided were totally insourced or the authors were silent regarding any resources that were outsourced. A system dynamics model to account for the impacts of outsourcing various percentages of the construction services to sustain a construction project over a specified time horizon was developed using Vensim software. Results of running this model indicate that the amount of effort of construction work depends upon both the productivity and quality of the outsourced construction services as well as project manning constraints. The percent of outsourcing construction work may also produce schedule overrun in the overall time to complete the required work tasks in the construction project.
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