To date, a plethora of research has been published investigating the value of using Digital Twin (DT) technology in the construction industry. However, the contribution of DT technology to promoting social sustainability in the industry has largely been unexplored. Therefore, the current paper aims to address this gap by exploring the untapped potential of DT technology in advancing social sustainability within the construction industry. To this end, a comprehensive systematic literature review was conducted, which identified 298 relevant studies. These studies were subsequently analysed with respect to their use of DT technology in supporting social sustainability. The findings indicated that the studies contributed to 8 of the 17 UN Sustainable Development Goals (SDGs), with a strong focus on SDG11 (77 publications), followed by SDG3 and SDG9, with 58 and 48 studies, respectively, focusing on promoting health and well-being and fostering resilient infrastructure and innovation. Other contributions were identified for SDG13 (30 studies), SDG7 (27 studies), SDG12 (26 studies), SDG4 (21 studies), and SDG6 (11 studies), covering areas such as climate action, responsible consumption, affordable energy, quality education, and clean water and sanitation. This paper also proposes future research directions for advancing DT technology to further enhance social sustainability in the construction industry. These include (i) enhancing inclusivity and diversity, (ii) workforce safety and well-being, (iii) training and skill development, (iv) policy and regulatory support, and (v) cross-disciplinary collaboration.

Purpose: The purpose of this research is to identify the conditions under which the internal environment of small construction firms makes them either develop or adopt an innovation.Design/methodology/approach: The research described in this paper adopted a qualitative case study approach. The data were obtained from multiple sources such as face-to-face semi-structured interviews with company representatives and from project reports.Findings: The study identified that firms’ decision to either adopt or develop an innovation is determined by a complex interaction between their internal environment and 12 different conditions. Some of the findings contrast widespread perceptions in broader literature on innovation development and adoption in small construction firms.Research limitations/implications: The study focused only on firms from two regions in Ghana. Additionally, adopting a purely qualitative approach meant that the quantitative impacts of the different factors were not presented.Practical implications: The results can inform the decisions of agencies and persons wishing to invest their resources in innovation activities of small construction firms. It can also inform the policy debate and directions of government and industry associations looking to create innovation-friendly environments in the small business sector.Originality/value: This research provides a better understanding of innovation development and adoption by small construction firms. Given that there is little previous research on innovation by small construction firms, especially in developing economies, the paper complements existing studies that generally focus on much larger firms and developed economies.