Revisiting the determinacy on New Keynesian Models: A survey

Alberto F. Boix and Adri\'an Segura Moreiras

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Abstract: The goal of this paper is to review some analytic techniques that are potentially useful to shed light on the determinacy question that arises in New Keynesian models as result of a combination of several monetary policy rules; in these models, we provide conditions to guarantee existence and uniqueness of equilibrium by means of results that are obtained from theoretical analysis. In particular, these methods confirm the well known fact that Taylor--like rules in interest rate setting are not the only way to reach determinacy of the rational expectations equilibrium in the New Keynesian setting. The key technical tool we use for that purposes is the so--called Budan--Fourier Theorem, that we review along the paper. All the ideas and techniques presented have been already used, our contribution that might be original here are the organization and emphasis.

Date: 2017-12, Revised 2024-01
New Economics Papers: this item is included in nep-dge and nep-mac
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Persistent link: https://EconPapers.repec.org/RePEc:arx:papers:1712.03681

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