Browsing by Author "Mchopa, A. D."

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    Effects of supplier selection and supplier monitoring on public procurement efficiency in Tanzania: a cost-reduction perspective
    (Emerald, 2023) Changalima, I. A.; Ismail, I. J.; Mchopa, A. D.
    Purpose This study aims to examine the role of supplier selection and supplier monitoring in public procurement efficiency in terms of cost reduction in Tanzania. Design/methodology/approach A structured questionnaire was used to collect cross-sectional survey data from 179 public procuring entities in Tanzania. Structural equation modelling (SEM) was used to analyse the collected data. Findings The findings revealed that supplier selection and supplier monitoring are positive and significant predictors of public procurement efficiency in terms of cost reduction. Research limitations/implications This study was conducted in Tanzanian public procurement contexts, so generalisations should be made with caution. Also, this study collected cross-sectional data; other studies may consider longitudinal data. Practical implications This study provides procurement practitioners with insights into selecting the proper suppliers and embracing supplier monitoring to achieve procurement efficiency in terms of cost reduction. Originality/value This study examines the effects of supplier selection and supplier monitoring on procurement cost reduction as a measure of public procurement efficiency in the Tanzanian context. Consequently, it provides empirical evidence of supplier management practices in the public procurement context.
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    Supplier development and public procurement performance: does contract management difficulty matter?
    (The Cogent OA., 2022) Changalima, I. A.; Mchopa, A. D.; Ismail, I. J
    This paper investigates the relationship between supplier development and procurement performance in the public sector. Furthermore, the paper examines the moderating role of contract management difficulty on the relationship between supplier development and procurement performance. Using crosssectional data collected from 179 public procuring entities, the main findings of the study are two-fold. Firstly, the relationship between supplier development and procurement performance in public sector is positive and significant (β = 0.2343 and p = 0.0014). Also, contract management difficulty negatively and significantly moderates the relationship between supplier development and procurement performance (β = −0.1447 and p = 0.0190). In this aspect, the influence of supplier development on procurement performance is negatively affected by contract management difficulties. The study contributes to the supplier management, procurement performance, and contract management literature by providing empirical evidence on the role of supplier development on procurement performance in developing countries like Tanzania. Also, the conditional effects of contract management difficulty on the relationship between supplier development and procurement performance matter. The study’s findings have important implications for procurement practitioners in the public sector and policy makers.
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    Supplier monitoring and procurement performance in the public sector in Tanzania: the moderating role of contract management difficulty
    (Emarald, 2023) Changalima, I. A.; Mchopa, A. D.; Ismail, I. J.
    Purpose This study aims to examine the effect of supplier monitoring on procurement performance in the Tanzanian public sector, as well as how contract management difficulty moderates the effect of supplier monitoring on procurement performance. Design/methodology/approach In this paper cross-sectional data were collected from 179 Tanzanian public procuring organizations using a structured survey questionnaire. Confirmatory factor analysis (CFA) and the PROCESS macro were used to analyse the collected data. Findings Supplier monitoring has a positive and significant relationship with procurement performance in terms of cost reduction, lead times and buyer satisfaction. Furthermore, contract management difficulty has a negative moderating effect on the relationships between supplier monitoring and procurement performance dimensions. Research limitations/implications Because public procurement is governed by laws and procedures, generalization of results should be done with caution. This is because the study is currently limited to Tanzanian public procurement. Apart from contract management difficulty, future research can look at other factors that may be needed to moderate the link between supplier monitoring and procurement performance. Practical implications Procurement practitioners must monitor major suppliers’ timeliness, product quality and order accuracy in order to improve procurement performance. Furthermore, proper contract management is required, which necessitates effectively reinforcing procurement contract managers’ responsibilities and providing contract management training for practitioners in order to control anomalies when suppliers and contracts are involved. Originality/value By adding a moderating variable, the study adds to the literature on supplier monitoring in public procurement and the on-going debate on supplier monitoring and performance.