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Introducción a Series de Tiempo Univariadas - Centro Microdatos

Introducción a Series de Tiempo Univariadas - Centro Microdatos

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Introducción a <strong>Series</strong> <strong>de</strong> <strong>Tiempo</strong> <strong>Univariadas</strong>December 31, 2010arima starts irate, arima(1,1,1) sarima(1,1,1,12)estimates store arimaxestimates table arima2 arima7 arimax, stat(aic, bic) b(%7.3g) p(%4.3f)--------------------------------------------Variable | arima2 arima7 arimax-------------+------------------------------starts |irate |DS12. | -2.12| 0.080|_cons | .0147 .0129 .0101| 0.790 0.742 0.790-------------+------------------------------ARMA |ar |L1. | -.257 -.0366 .0008| 0.000 0.765 0.995L12. | -.327| 0.001L24. | .103| 0.022|ma |L1. | -.058 -.291 -.329| 0.106 0.011 0.003L12. | -.554| 0.000L24. | -.517| 0.000-------------+------------------------------sigma |_cons | 10.3 10.8 10.8| 0.000 0.000 0.000-------------+------------------------------ARMA12 |ar |L1. | .162 .158| 0.001 0.001|ma |L1. | -.942 -.943| 0.000 0.000-------------+------------------------------Statistics |aic | 4188 4188 4187bic | 4222 4213 4217--------------------------------------------legend: b/pObservamos que la variable <strong>de</strong> tasa <strong>de</strong> interés resulta ser estadísticamente significativa pero sólo aun 10% <strong>de</strong> significancia, adicionalmente, el criterio <strong>de</strong> información bayesiano es mayor en elmo<strong>de</strong>lo que incorpora esta variable explicativa, por lo cual nos <strong>de</strong>beríamos quedar con el mo<strong>de</strong>loanterior.93

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