摘要:This study investigated the mediating and moderating effects of competitive advantage and access to working capital, respectively, on the relationship between entrepreneurial competencies and informal microenterprise economic performance in Senegal from the lens of resource-based view theory (RBV). Data were randomly gathered using the cross-sectional research design from 356 informal micro-entrepreneurs operating in the informal sector. The study outcomes revealed that entrepreneurial competencies and competitive advantage emerged as significant predictors of economic performance for informal microenterprises in Senegal. On the contrary, access to working capital displayed an adverse moderating effect, while competitive advantage exhibited a partial and positive mediating effect on the relationship between entrepreneurial competencies and economic performance of informal microenterprises. The Important and Performance Matrix Analysis (IPMA) results signify that the most significant considerations for the economic performance of informal microenterprises in Senegal were competitive advantage, access to working capital, commitment competency, and relationship competency. Simultaneously, this study expanded the reach of RBV by enhancing our understanding pertaining to the mediating and moderating roles in the relationships among entrepreneurial competencies, competitive advantage, and access to working capital towards improving the economic performance of informal microenterprises across developing countries. Since many have lost their jobs due to the Coronavirus Disease 2019 (COVID-19) pandemic, the Government of Senegal and its policymakers should place more emphasis on the importance of informal entrepreneurship, such as provision of low-interest credit facilities for their working capital, as well as thorough training in the strategic advantage and competencies domains. This is because informal entrepreneurs have the ability, via jobs creation and income generating activities, to contribute to the economic growth of the country.