In This Paper Several Additional Gmm Specification Tests Are Studied. a First Test Is a Chow-Type Test for Structural Parameter Stability of Gmm Estimates. the Test Is Inspired by the Fact That "Taste and Technology" Parameters Are Uncovered. the Second Set of Specification Tests Are Var...

Un Test de la Stabilite Structurelle des Parametres Estimee Par la Methode des Moments Generalisee (Mmg) Est Presente. le Test Est Predictif, Base Sur L'examen de Previsions Sur un Sous-Echantillon le Test S'applique Sur une Grande Variete de Modeles D'inference Dynamiques, Modeles D'equations...

Traditionally One Decomposes Economic Time Series Exhibiting Seasonality in a Cyclical Component, a Seasonal Component and Possibly Other Components. the Fundamental Assumptions Almost Exclusively Made About This Decomposition Is That (1) the Components Are Mutually Orthogonal and (2) the...