Econometrica: Sep 1977, Volume 45, Issue 6

Multiple Time Series Analysis and the Final Form of Econometric Models

https://doi.org/0012-9682(197709)45:6<1481:MTSAAT>2.0.CO;2-6
p. 1481-1497

Kenneth F. Wallis

Univariate autoregressive moving average models for the endogenous variables of a dynamic simultaneous equations system can be interpreted as a form of solution of that system. This paper considers the interrelationships between the various representations of the system, and develops joint estimation and model selection procedures for the multiple time series model which arises as a multivariate representation of the individual autoregressive moving average models. A test of the restriction of common autoregressive parameters is incorporated. Two empirical examples are presented, the first concerned with a model of the hog cycle and the second with a model of the United States economy previously considered by Zellner and Palm.

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