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Heterogeneidad observada y no observada en la formación de los precios del IPC Colombiano

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  • Juan Manuel Julio Román

Abstract

En este trabajo se caracterizan las reglas de precios de los minoristas Colombianos de bienes y servicios a través de la función de Hazard. Se cuenta con 12´052.970 reportes mensuales de precios de la totalidad de los bienes y servicios considerados en el cálculo del IPC Colombiano desde Marzo de 1999 hasta Mayo de 2008. En comparación con estudios similares de otros países, esta base de datos es particularmente útil para estudiar la presencia de dependencia del estado, particularmente costos de menú, ya que cubre un periodo de inflación decreciente, Marzo de 1999 a Junio de 2006, y otro de inflación creciente, Junio de 2006 a Mayo de 2008. Se implementa una estrategia econométrica apropiada para modelar la heterogeneidad observada tanto como la no observada de las duraciones de los precios para reducir sesgos en las estimaciones. Se concluye que: (1) Hay evidencia muy fuerte a favor de dependencia de estado. La dependencia de la Hazard sobre la inflación sectorial es considerada por diversos autores como evidencia de costos de menú. (2) La dependencia de estado es mas baja para precios flexibles que para rígidos. (3) Hay evidencia muy fuerte a favor de riesgos competitivos entre incrementos y disminuciones de los precios. En particular, una expansión monetaria acelera su efecto sobre los precios a través de los bienes y una contracción lo acelera a través de los servicios. (4) La sensibilidad de la Hazard a los cambios en la devaluación es muy moderada. (5) Hay muy poca evidencia en favor de contratos explícitos excepto por servicios que se caracterizan por estos. (6) Hay evidencia muy fuerte de heterogeneidad debida al tipo de minorista que distribuye el ítem y de heterogeneidad no observada.

Suggested Citation

  • Juan Manuel Julio Román, 2010. "Heterogeneidad observada y no observada en la formación de los precios del IPC Colombiano," BORRADORES DE ECONOMIA 006976, BANCO DE LA REPÚBLICA.
  • Handle: RePEc:col:000094:006976
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    References listed on IDEAS

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    Cited by:

    1. Parra Álvarez, Juan Carlos & Misas A., Martha & López-Enciso, Enrique Antonio, 2011. "Heterogeneidad en la fijación de precios en Colombia : análisis de sus determinantes a partir de modelos de conteo," Chapters, in: López Enciso, Enrique & Ramírez Giraldo, María Teresa (ed.), Formación de precios y salarios en Colombia T.1, volume 1, chapter 8, pages 251-293, Banco de la Republica de Colombia.
    2. Andrés González & Lavan Mahadeva & Juan D. Prada & Diego Rodríguez, 2011. "Policy Analysis Tool Applied to Colombian Needs: Patacon Model Description," Revista ESPE - Ensayos sobre Política Económica, Banco de la Republica de Colombia, vol. 29(66), pages 222-245, December.
    3. Juan Manuel Julio-Román, 2019. "Estimating the Exchange Rate Pass-Through: A Time-Varying Vector Auto-Regression with Residual Stochastic Volatility Approach," Borradores de Economia 1093, Banco de la Republica de Colombia.

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    More about this item

    Keywords

    Fijación de los Precios; Rigideces de Precios; Modelos de Duración; Función de Hazard.;
    All these keywords.

    JEL classification:

    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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