The Role of Small and Medium Enterprises (SMEs) in Sustainable Economic Growth

Abstract

Small and medium enterprises (SMEs) constitute the backbone of most national economies, accounting for the overwhelming majority of business establishments, a substantial share of employment, and a meaningful contribution to gross domestic product (GDP) across both developed and developing nations. This paper examines the multidimensional role of SMEs in advancing sustainable economic growth, understood as growth that is simultaneously economically robust, socially inclusive, and environmentally responsible. Drawing exclusively on secondary data published between 2018 and 2025 by institutions such as the World Bank, the International Finance Corporation (IFC), the Organisation for Economic Co-operation and Development (OECD), the International Labour Organization (ILO), and national statistical agencies, the study synthesises empirical evidence on SME contributions to employment, GDP, innovation, export diversification, financial inclusion, and green transition. The analysis is organised around five thematic data tables that trace SME performance indicators over the study period. Findings indicate that SMEs generate roughly 60 to 70 percent of formal employment and contribute approximately 40 percent of GDP in emerging economies, while persistent constraints—chiefly a financing gap estimated at USD 5.2 trillion, limited digital adoption, and uneven access to green finance—continue to suppress their full potential. The paper concludes that the sustainability dividend of the SME sector can be realised only through coordinated policy intervention targeting access to finance, digital and managerial capability building, and incentives for environmentally responsible production. The study contributes a consolidated, evidence-based overview that is useful for policymakers, development institutions, and researchers seeking to align SME development with the Sustainable Development Goals (SDGs).