00816nab a2200241 uc4500 825820 20240201185752.0 030610e20030305 eng 825820 (OCoLC)820030006 comduadb eng Ruiz, Isabel aut aut 277022 About the theory and empirical analysis of the persistence of profit and its applicability to Colombia Monopolios colombianos 10275 Mercado 135350 Modelo dinámico (Economía) 108482 Series de tiempo 58201 Barreras comerciales 108573 Análisis de varianza 31463 Ecos de Economía (Medellín) No. 16, Mar. 2003, p. 65-76 308696 1657-4206 104676 ARIMP 285153 285153