The interplay of social influence and top management support on suppliers' behavioural intentions in e-procurement usage

Abstract

The advancement of information technology has revolutionised most aspects of public procurement, including the way suppliers are involved in public procurement opportunities. This study explores the link between social influence and behavioural intention in the usage of the National e-Procurement System of Tanzania (NeST) among suppliers. The study also examines the moderating effect of top management support (TMS) in the relationship between social influence and behavioural intention. Based on cross-sectional data collected from 447 small and medium-sized enterprise suppliers in Dodoma and Dar es Salaam through structured questionnaires and analysed quantitatively using partial least squares structural equation modelling (PLS-SEM), the study confirms the positive relationship between social influence and behavioural intention in e-procurement usage. Additionally, the study confirms that TMS strengthens the relationship between social influence and behavioural intention. Specifically, suppliers with a high level of TMS experience a greater effect of social influence on their behavioural intentions compared to those with a low level of TMS. Therefore, both social influence and TMS play significant roles in amplifying behavioural intention. These insights provide crucial implications for practitioners and policymakers who are involved in e-procurement, and academics interested in public procurement.