Article Predicting knowledge sharing by professional architects in architectural firms in Ibadan, Nigeria Damilola Olanrewaju Lasode and Kemi Ogunsola University of Ibadan Abstract This study investigated the factors predicting knowledge sharing among architects in architectural firms in Ibadan metropolis, southwestern Nigeria. The study provided insight into the validity of social exchange theory, social capital theory and technological factors for studying and explaining knowledge sharing among professional architects in architectural firms. Survey research design was adopted for the study. A field survey of 104 architects was carried out using a questionnaire for data collection. Convenience and snowball sampling techniques were used to select the respondents for the study. Data were analysed using descriptive statistics and multiple regression. Findings revealed that significant predictors of knowledge sharing were enjoyment in helping others, social interaction, social identification, shared language/vision and loss of knowledge power. The level of information and communication technology (ICT) usage was also found to significantly predict knowledge sharing among architects. However, the results indicated that organisational rewards and trust do not significantly predict knowledge sharing among architects. The results also showed that loss of knowledge power negatively affected knowledge sharing, suggesting a tendency to hoard knowledge. Based on these research findings, recommendations were therefore made. Keywords architects, information and communication technology, knowledge sharing, social capital social exchange, Nigeria Submitted: 20 October, 2017; Accepted: 20 July, 2018. Introduction The possession of valuable knowledge that is difficult to imitate has been recognised as the key to providing organisations with a sustainable competitive advan- tage. Since knowledge tends to be distributed within an organisation, the key to developing competitive advantage is to facilitate effective knowledge sharing practices among employees. This implies that the suc- cess of organisational knowledge management is con- tingent to a significant degree on the intention of individuals to share knowledge (Wang, 2016). The ability to share knowledge between units has been shown to contribute significantly to the performance of organisations. Knowledge sharing is also positively associated with team performance (Choi, Lee, and Yoo, 2010; Wang and Noe, 2010) and project performance (Liu, Keller, and Shih, 2011). Knowl- edge sharing is of particular importance in project- based work. The construction sector is a prime example of a project-based industry, and is one of the multidisciplinary domains in which collaboration and relationships among related parties are of utmost importance (Pektasx and Pultar, 2006). In construction projects, team members possess valuable knowledge that can be shared and applied throughout the construction process (Zhang and Ng, 2012). These teams are typically composed of Corresponding author: Dr. Kemi Ogunsola, Africa Regional Centre for Information Science, University of Ibadan, Nigeria. Email: olukemi11@yahoo.com Information Development 1–18 ª The Author(s) 2018 Article reuse guidelines: sagepub.com/journals-permissions DOI: 10.1177/0266666918793927 journals.sagepub.com/home/idv