Econometric Models of the Euro-area Central Banks
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Econometric Models of the Euro-area Central Banks

Edited by Gabriel Fagan and Julian Morgan

This book provides a description of the main macroeconomic models used by the European Central Bank and the euro area national central banks (Eurosystem). These models are used to help prepare economic projections and scenario analysis for individual countries and the euro area as a whole.
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Chapter 6: The National Bank of Belgium's quarterly model

Philippe Jeanfils


6. The National Bank of Belgium’s quarterly model Philippe Jeanfils This chapter briefly describes the main features of the current version1 of the National Bank of Belgium’s quarterly macroeconomic model. This version of the model still needs to be finalized, therefore some results presented here may be revised as new developments take place before the new model is finalized and published. 1 INTRODUCTION The model we currently use for Belgium was developed in the late 1990s and has replaced a larger multisectoral model which was used previously. It is estimated on quarterly seasonally-adjusted data and has an explicit theoretical structure. Private agents are optimizing over time in the presence of adjustment costs, which leads to an explicit separation of expectations from response lags in many dynamic equations. These costs introduce nominal rigidities leading to Keynesian types of effects in the short run while the steady state growth rate is determined by the labour force and technological progress. The clear delineation of expectations allows the model to answer economic policy-related questions under different expectations formations, from limited information to model-consistent rationality. The development of this new model of the Belgian economy provided the opportunity to incorporate certain characteristics reflecting recent theoretical and empirical features. One of the main motivations in building our model is our belief that a gap has emerged between traditional econometric macromodels and modern macroeconomic theory. Contrary to many traditional macroeconometric models, the Belgian model is based on formal theories of optimal planning...

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