MATEJKOVA , Jitka. From metrics to meaning: A signalling–exchange framework for social media engagement in European small and medium-sized enterprises . Asian Journal of Economics and Empirical Research, [S. l.], v. 13, n. 1, p. 45–57, 2026. DOI: 10.20448/ajeer.v13i1.8654. Disponível em: https://asianonlinejournals.com/index.php/AJEER/article/view/8654. Acesso em: 16 may. 2026.