Expectativas de inflación y tasa de interés: aspectos teóricos
DOI:
https://doi.org/10.17533/udea.le.n20a7997Abstract
• Resumen: ¿Qué efectos tienen los cambios en las expectativas de inflación sobre las tasas de interés, nominales y reales? ¿Cómo se producen esos efectos? Existen dos grandes respuestas teóricas antagónicas a las preguntas anteriores: la clásica y la keynesiana. En este artículo se resumen dichas respuestas y se exponen sus alcances y limitaciones. A partir de este resumen se construye un modelo "cuasi-keynesiano", pero que arroja una conclusión que coincide con la respuesta clásica al respecto: las expectativas de inflación tienden a quedar incorporadas en la tasa nominal de interés sin modificar de manera permanente la tasa real de interés. En países o épocas con alteraciones significativas de las expectativas de inflación esta conclusión puede ser la correcta, no así la keynesiana.
• Abstract: This question of just how expectations of inflation influence the real and the nominal rate of interest have been addressed from both a Keynesian and a classical perspective. This paper presents a critical summary of these arguments in the context of a quasi-keynesian model. Its finding is however is essentially classical – that inflationary expectations will be incorporated into the nominal rate of interest without having any permanent effect on the real rate.
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