An Advanced Computational Model for International E-Commerce Tax Planning and Its Influence on Firm-Level Market Competitiveness. European Journal of Emerging Economics and Management, [S. l.], v. 3, n. 05, p. 1–7, 2026. Disponível em: https://parthenonfrontiers.com/index.php/ejeem/article/view/664. Acesso em: 25 oct. 2026.