What Drives Inequality in Sumatra? Evidence from Provincial Panel Data, 2015–2024. Efficient: Indonesian Journal of Development Economics, [S. l.], v. 9, n. 2, p. 172–183, 2026. DOI: 10.15294/efficient.v9i2.35654. Disponível em: https://journal.unnes.ac.id/journals/efficient/article/view/35654. Acesso em: 11 sep. 2026.