The Impact of Digital Economy on the Economic Growth in the OECD and Tunisia Countries

This paper examines the contribution of the digital economy to economic growth in selected Organisation for Economic Co-operation and Development (OECD) countries in comparison with Tunisia. Using a balanced panel dataset covering 18 OECD countries and Tunisia over the period 2010-2020, this study applies several econometric techniques, including fixed effects (FE), random effects (RE), the Hausman test, ordinary least squares (OLS), two-stage least squares (2SLS), and the difference Generalized Method of Moments (GMM).The empirical results provide robust evidence that the digital economy has a significant and positive impact on economic growth across the sample countries. The findings indicate that digital development contributes to higher GDP per capita by improving productivity, innovation capacity, and economic efficiency. These results are particularly relevant, as advanced digital technologies create new economic opportunities in both OECD countries and Tunisia.From a policy perspective, the study highlights the importance for the Tunisian government to intensify investment in the digital economy, particularly in digital infrastructure, digital openness, and digital innovation, in order to fully benefit from digital transformation and achieve sustainable economic growth.