Staff Integrity, Effort Quality to Sustainability and Green Public Procurement Adoption in Uganda

Aim: This study examined the influence of staff integrity and effort quality to sustainability on green public procurement adoption among central government procurement and disposing entities (PDEs) in Uganda. Methods: A quantitative descriptive cross-sectional research design was used. Through the use of a stratified sampling technique, 259 respondents were selected to form the study sample from a population of 790 civil servants. The respondents comprised of chief procurement officers, senior procurement officers, assistant procurement officers, inventory management officers, and assistant inventory management officers. A self-administered questionnaire was used to collect data from the respondents. Multiple regression analysis was conducted to ascertain the predictors and their level of prediction on the dependent variable. Results: The analysis reveals that both staff integrity and effort quality have a significant influence on the sustainability of green public procurement adoption. The results revealed that staff integrity (β = .189, p < .05) and effort quality to sustainability (β = .227, p < .01) significantly and positively predict green public procurement adoption, although the overall model explained a modest proportion of variance (Adjusted R² = .109). Conclusion: The findings suggest that both ethical conduct at the individual level and institutionalized sustainability efforts at the organizational level are critical drivers of green procurement adoption in Uganda’s public sector. Recommendations: It is recommended that procurement regulatory bodies strengthen ethical compliance mechanisms by integrating sustainability accountability into codes of conduct and performance appraisal systems. Additionally, PDEs should institutionalize sustainability monitoring frameworks, including clear key performance indicators and evaluation procedures for procurement decisions.