Economía & Región Number: 2 The most recent Productivity and Efficiency of Public Hospitals in Colombia by Complexity Level: New Evidence from 2007 to 2021 Diego Vásquez-Escobar Tax Structure and Performance of Colombian Firms Juan Esteban Carranza-Romero, Alejandra González-Ramírez, Mauricio Villamizar-Villegas National budget and central government fiscal balance: How are they related and what differentiates them? Hernán Rincón-Castro, Steven Zapata-Álvarez