Why Does Christmas Feel Sadder Over Time? An Economic—Relational Theory of the Christmas Paradox in Developing Societies. Journal of Economic Development, Innovation and Policy, [S. l.], v. 2, n. 2, p. 111–131, 2026. DOI: 10.55578/jedip.2605.007. Disponível em: https://ojs.nexuspress.org/journal-jedip/article/view/246. Acesso em: 29 may. 2026.