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This study aims to examine the association between community engagement, community commitment and sustainability of public–private partnership (PPP) projects in Uganda.

This study adopted a cross-sectional and quantitative approach. Data were collected using a questionnaire from 42 PPP projects in Uganda.

The study found that community engagement and commitment are all positively and significantly associated with the sustainability of PPP projects in Uganda. Results also show that community commitment mediates community engagement and project sustainability.

The study results imply that for sustainability to be achieved, communities must be engaged in project activities such as planning, design and implementation to boost their commitment to project sustainability.

The sustainability of PPP projects is an emerging phenomenon. This paper contributes to scanty literature on ensuring the sustainability of PPP projects from a developing country’s perspective.

The purpose of this study is to examine whether contractual completeness is a cornerstone to stakeholder management in Public–Private Partnership (PPP) projects in Uganda.

This study adopted a cross-sectional and quantitative approach. Data were collected by means of a questionnaire survey from a sample of 103 PPP projects in Uganda. Partial Least squares structural equation modeling was used to analyze the data.

The study found that contractual completeness dimensions (contractual obligatoriness, contingency adaptability, issue inclusiveness, term specificity) are all significantly and positively associated with stakeholder management in PPP projects in Uganda.

This paper is one of the few studies on stakeholder management in PPP projects from a developing country’s perspective, thus contributing to scanty literature on how to manage stakeholders in PPP projects.

This paper is limited to the relationship between contract completeness dimensions and stakeholder management in PPP projects in Uganda. Future studies should be conducted on other factors that affect stakeholder management in PPP projects in Uganda.

Our results imply that when all the relevant issues are included in the contract, contract terms are explicitly stipulated, all the unanticipated changes are described and when all the parties involved are restrained by a binding force of a contract, conflicts and opportunism reduces and stakeholders concerns are addressed.

This paper aims to examine the level of economic efficiency and factors that influence economic efficiency among seed potato producers in South-western Uganda.

The paper analyses the economic efficiency of 499 informal and 137 formal seed producers using primary data collected through a structured questionnaire. A multi-stage sampling technique was used to select the study sites and specific farmers. A one-step estimation procedure of normalized translog cost frontier and inefficiency model was employed to determine the level of economic efficiency and the influencing factors.

The results showed that mean economic efficiencies were 91.7 and 95.2% for informal and formal seed potato producers, respectively. Furthermore, results show significant differences between formal and informal seed potato producers in economic efficiency at a one percent level. Market information access, credit access, producers' capacity and experience increase the efficiency of informal while number of potato varieties, market information access and producers' experience increase economic efficiency for formal counterparts.

Most seed potato producers, especially the informal ones do not keep comprehensive records of their production and marketing activities. This required more probing as answers depended on memory recall.

Future research could explore panel data approach involving more cropping seasons with time variant economic efficiency and individual unobservable characteristics that may influence farmers' efficiency to validate the current findings.

The paper shows that there is more potential for seed potato producers to increase their economic efficiency given the available technology. This has a direct implication on the economy through increased investment in the production and promotion of high yielding seed potato varieties to meet the growing national demand for potatoes.

The paper bridges the gap in literature on economic efficiency among seed potato producers, specifically in applying the normalized translog cost frontier approach in estimating economic efficiency in the context of potato sub-sector in Uganda.

The peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-10-2021-0641