An Empirical Analysis of Dynamic Interrelationships Among Inflation, Inflation Uncertainty, Relative Price Dispersion, and Output Growth

نویسنده

  • Francis Vitek
چکیده

Within a unified framework, the author conducts an empirical investigation of dynamic interrelationships among inflation, inflation uncertainty, relative price dispersion, and output growth. Focusing on the Canadian industrial sector, the author finds weak evidence that inflation uncertainty rises with the level of inflation, with short-run inflation uncertainty minimized at a trend inflation rate of approximately 3 per cent. With regard to the predictions of menu-cost and signal-extraction models, evidence that relative price dispersion rises with both trend inflation and inflation uncertainty is obtained. However, the significance of this evidence varies according to whether a weighted or unweighted measure of relative price dispersion is employed, in addition to the symmetry characteristics of the process governing the evolution of inflation uncertainty. The primary result is that across a variety of different model specifications, inflation uncertainty significantly lowers output growth, an effect of considerable size and duration. JEL classification: E3; E31 Bank classification: Inflation and prices Résumé Dans un cadre empirique unifié, l’auteur étudie les liens dynamiques entre l’inflation, l’incertitude entourant celle-ci, la dispersion des prix relatifs et la croissance de la production, en mettant l’accent sur le secteur industriel canadien. D’après certains des résultats qu’il présente, la hausse du niveau de l’inflation ferait augmenter l’incertitude de l’inflation, l’incertitude touchant un creux en courte période lorsque l’inflation tendancielle avoisine les 3 %; cependant, les résultats en question sont peu significatifs. En ce qui concerne les prévisions des modèles à coûts d’étiquetage et des modèles à signaux brouillés, l’auteur constate que la dispersion des prix relatifs s’accroît à la fois avec l’inflation tendancielle et avec l’incertitude de l’inflation. Le degré de signification de ce résultat varie toutefois selon que l’on utilise une mesure pondérée ou non de la dispersion des prix relatifs; le caractère symétrique ou non du processus régissant l’évolution de l’incertitude de l’inflation tire aussi à conséquence. Le principal point à retenir est que, dans un vaste éventail de spécifications mises à l’essai, l’incertitude entourant l’inflation a un effet de réduction important, persistant et significatif sur la croissance de la production. Classification JEL : E3; E31 Classification de la Banque : Inflation et prix

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تاریخ انتشار 2000