ABSTRACT There is a lack of relevant research on the relationship between digital capability and export performance of small and medium-sized enterprises (SMEs) in China. This study, based on the theory of transaction costs (TCT), takes the perspective of digital governance and control and uses structural equation modelling (SEM) to conduct empirical analysis using survey data from 332 Chinese SME exporters on Alibaba.com. The study focuses on how digital capability can improve export performance by reducing perceived uncertainty and transaction costs and expanding export markets. The empirical results show that digital capability has a significant positive impact on reducing perceived uncertainty and transaction costs, thereby driving export market expansion and ultimately improving export performance. The mediating effect analysis shows that transaction costs (transaction costs and perceived uncertainty) plays a significant simple (chain) mediating role between digital capability and export market expansion, while perceived uncertainty does not play a simple mediating role in this process. In addition, export market expansion shows a significant mediating effect between digital capability and export performance of SMEs.
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