EVIDENCE OF ACTIVE MANAGEMENT OF PRIVATE VOLUNTARY PENSION FUNDS IN COLOMBIA: A PERFORMANCE ANALYSIS USING PROXY ETFs. estud.gerenc. [Internet]. 2010 Jun. 30 [cited 2026 Oct. 21];26(115):13-38. Available from: https://webcache.icesi.edu.co/revistas/index.php/estudios_gerenciales/article/view/357