The construction sector in Ethiopia has experienced rapid growth but is characterized by inefficiencies and high costs. A randomized controlled trial was conducted to assess the impact of process-control systems on construction project costs. Data were collected from 10 randomly selected projects over two years. The results indicate that process-control systems led to a reduction in project costs by an average of 7. 5% with a 95% confidence interval (6. 2%–8. 8%). Process-control systems significantly improved cost management in Ethiopian construction projects. Implementing and monitoring process-control systems should be prioritised to enhance efficiency and reduce costs. construction project, process-control systems, cost-effectiveness analysis, randomized field trial The maintenance outcome was modelled as Y₈ₓ=₀+₁X₈ₓ+uᵢ+₈ₓ, with robustness checked using heteroskedasticity-consistent errors.
Abera et al. (Mon,) studied this question.
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