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La tasa de cambio nominal: una aproximación desde la oferta y la demanda de divisas

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  • Montoya R., Jaime

Abstract

Resumen: La presente investigación estudia el problema de la determinación del tipo de cambio nominal en Colombia. Para tal efecto, se construye un modelo teórico del tipo de cambio basado en las ofertas y demandas de divisas siguiendo la metodología keynesiana de la demanda de dinero; tanto la demanda como la oferta se descomponen en fundamentales transaccionales y especulativos. La ecuación reducida del tipo de cambio obtenida es estimada por mínimos cuadrados ordinarios diferenciando entre fundamentales de largo y corto plazo; los resultados obtenidos fueron valores razonables de los estadísticos t, ausencia de heteroscedasticidad y no existencia de errores de especificación mediante el test Reset de Ramsay. Posteriormente, se estima por componentes principales como una vía alternativa para testear mejor la estacionariedad de residuales con resultados favorables. Lo anterior sugiere una aproximación alentadora en la investigación sobre el tipo de cambio nominalAbstract: This research studies the problem of determining the nominal exchange rate in Colombia. To this end, build a theoretical model of exchange rate based on supply and demand of currencies following the methodology of Keynesian demand for money, both demand and supply are broken down into fundamental and speculative transaction. The reduced equation obtained exchange rate is estimated by OLS fundamentals differentiating between long and short term, the results were reasonable values of the t statistics, no heteroscedasticity and errors of specification by Ramsay reset test. Subsequently, principals component is estimated as an alternative way to test better the existence of unit roots in the residuals with favorable results

Suggested Citation

  • Montoya R., Jaime, 2011. "La tasa de cambio nominal: una aproximación desde la oferta y la demanda de divisas," Perfil de Coyuntura Económica, Universidad de Antioquia, CIE, June.
  • Handle: RePEc:col:000165:010691
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    File URL: http://aprendeenlinea.udea.edu.co/revistas/index.php/coyuntura/article/view/11466/10458
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    Keywords

    : Modelo de tasa de cambio nominal; demanda y oferta transaccional de divisas; demanda y oferta especulativa de divisas; ecuación reducida; estimación econométrica;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • F31 - International Economics - - International Finance - - - Foreign Exchange
    • F32 - International Economics - - International Finance - - - Current Account Adjustment; Short-term Capital Movements

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