Análisis de la inflación en Bolivia. Un enfoque Markov-Switching con tres estados
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rlde
Abstract
Este documento analiza la evolución de la tasa de inflación interanual en Bolivia con tres estados, en el periodo de 1987 a 2017, con datos de frecuencia trimestral. Para tal efecto se utilizan los modelos markovianos: Switching Markov Regression Arma de orden 3 [MS_ARMA(3, 2, 1)], con parámetros autoregresivos de orden 1 y 2 y la inclusión de una dummy de tendencia en cada régimen. Los resultados demuestran que, en el periodo en estudio, predominan las temporadas de baja y moderada inflación en toda la muestra. Otro hallazgo importante es que la persistencia estimada en la tasa de inflación interanual en Bolivia es del orden 0.1174. Ello implica una persistente baja en la inflación, lo que significa que los choques en ella se disipan rápidamente, confirmando así la estabilidad de precios que se gesta desde mediados de los años 90.
This document analyzes the evolution of the inflation rate in Bolivia with three states, in the period 1987 to 2017, with quarterly frequency data. Markov Models are used for this purpose: a Switching Markov Regression of order 3 [MS_ARMA (3, 2, 1)], with autoregressive parameters of order 1 and 2 and the inclusion of a trend dummy in each regime. The results show that in the period under study, the spells of low and moderate inflation predominate throughout the sample. Another important finding is that the estimated persistence of interannual inflation rate in Bolivia is of order 0.1174, which implies a low persistence in inflation. This means that the shocks in it dissipate quickly, thus confirming the price stability that has been generated since the mid-1990s.
This document analyzes the evolution of the inflation rate in Bolivia with three states, in the period 1987 to 2017, with quarterly frequency data. Markov Models are used for this purpose: a Switching Markov Regression of order 3 [MS_ARMA (3, 2, 1)], with autoregressive parameters of order 1 and 2 and the inclusion of a trend dummy in each regime. The results show that in the period under study, the spells of low and moderate inflation predominate throughout the sample. Another important finding is that the estimated persistence of interannual inflation rate in Bolivia is of order 0.1174, which implies a low persistence in inflation. This means that the shocks in it dissipate quickly, thus confirming the price stability that has been generated since the mid-1990s.
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No. 33