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A multivariate unobserved components model to estimate potential output in the euro area: a production function based approach

Mate Toth

No 2523, Working Paper Series from European Central Bank

Abstract: This paper builds an unobserved components model that combines a multivariate filter approach with a Cobb-Douglas production function. This combination allows potential output estimates to incorporate more economic structure than the traditional production function approach, while retaining the ability to conduct growth accounting exercises. The model is a backward-looking state space model estimated with Bayesian methods employing the Kalman filter to jointly decompose six key observable variables (real GDP, unemployment rate, labour force participation rate, hours worked per person, a measure of core inflation and wage inflation) into trend and cyclical components. To do so, it relies on several reduced form relationships across the cyclical components, such as a wage and a price Phillips curve and an Okun's law type relationship, while it also assumes common trends for a few variables and allows for hysteresis effects. The model is estimated on aggregate euro area data with Bayesian methods. The paper finds that the resulting output gap estimates have good revision properties and reasonable forecasting performance in particular in terms of GDP and core inflation vis-a-vis a set of benchmarks. JEL Classification: C32, D24, E32, E37

Keywords: Bayesian estimation; production function; state-space model (search for similar items in EconPapers)
Date: 2021-02
New Economics Papers: this item is included in nep-eec and nep-mac
Note: 2510084
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