ZAZYAN, K. ANALYSIS OF THE UKRAINIAN MARKET FOR POWER BANKS AND PORTABLE POWER STATIONS: PRICING STRUCTURE, BRAND CONCENTRATION, AND PRICE ELASTICITY. Society. Economy. Digitalization, [S. l.], v. 2, n. 5, p. 44–54, 2025. DOI: 10.31379/sed.2.5.2025.42. Disponível em: https://sed.ieu.edu.ua/index.php/sed/article/view/42. Acesso em: 18 aug. 2026.