HUSIN LUBIS, A. Price Dynamics and Demand Elasticity in the Platform Economy Era: A Quantitative Analysis of the Online Retail Sector in Indonesia. International Journal of Economics (IJEC), [S. l.], v. 5, n. 1, p. 1–17, 2026. DOI: 10.55299/ijec.v5i1.1720. Disponível em: https://ejournal.ipinternasional.com/index.php/ijec/article/view/1720. Acesso em: 20 jan. 2026.