The role of green procurement on procurement performance in public procurement in Tanzania a case of kakonko district council

This study examined the role of green procurement practices in enhancing procurement performance in public procurement in Tanzania, using Kakonko District Council as a case study. Specifically, the study assessed the influence of sustainable sourcing, supplier involvement, and life cycle assessment practices on procurement performance. The study was guided by the Resource-Based View (RBV) and the Natural Resource-Based View (NRBV) theories and adopted a positivist stance. A mixed-methods approach employing a descriptive research design was used. The target population comprised procurement staff, user departments, suppliers, and tender board stakeholders. A sample size of 109 respondents was determined using Yamane’s formula, and data were collected through structured questionnaires and key informant interviews. Validity was enhanced through expert review and piloting, while reliability was verified using Cronbach’s Alpha coefficients above 0.7. Quantitative data were analyzed using descriptive statistics, Pearson correlation, and regression analysis using SPSS version 26, while qualitative data were analyzed thematically. Descriptive results indicated strong uptake of energy efficiency (Mean = 9.52) and waste reduction practices (Mean = 9.43), but weaker incorporation of sustainable materials and certifications (Mean = 4.65). Correlation analysis showed statistically significant positive associations among sustainable sourcing, supplier involvement, and life cycle assessment practices. Regression results further indicated that sustainable sourcing had a positive but statistically non-significant effect on procurement performance (R = 0.104; R² = 0.011; F = 1.168; p = 0.282; B = 0.115). Overall, the findings suggest that green procurement practices can strengthen procurement performance when supported by stronger institutionalization, supplier readiness, and effective monitoring and evaluation systems. The study recommends strengthening policy enforcement, building staff capacity on sustainability-based procurement tools, developing suppliers for certified sustainable products, and improving monitoring mechanisms to ensure green procurement practices translate into measurable procurement performance outcomes within Local Government Authorities.