摘要：This paper compares forecasts of Brazilian monthly inflation rate generated from different linear and nonlinear time series and Phillips’ curve models. In general, the nonlinear models had a better performance. The VAR model produced the smallest mean square forecast error (MSE) among linear models, while overall best forecasts were generated by the extended Phillips curve with a threshold effect, which presented a 20% smaller MSE than the VAR model. The Diebold e Mariano (1995) test indicated a significant difference between forecasts generated from the VAR and the expanded Phillips curve with a threshold.
其他摘要：This paper compares forecasts of Brazilian monthly inflation rate generated from different linear and nonlinear time series and Phillips’ curve models. In general, the nonlinear models had a better performance. The VAR model produced the smallest mean square forecast error (MSE) among linear models, while overall best forecasts were generated by the extended Phillips curve with a threshold effect, which presented a 20% smaller MSE than the VAR model. The Diebold e Mariano (1995) test indicated a significant difference between forecasts generated from the VAR and the expanded Phillips curve with a threshold.
关键词：Curva de Phillips; Modelos de Séries Temporais; Threshold; Previsão.;Curva de Phillips; Modelos de Séries Temporais; Threshold; Previsão.
其他关键词：Curva de Phillips, Modelos de Séries Temporais, Threshold, Previsão.
