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Periklis Gogas, Theophilos Papadimitriou and Elvira Takli
''Comparison of simple sum and Divisia monetary aggregates in GDP forecasting: a support vector machines approach''
( 2013, Vol. 33 No.2 )
In this study we compare the forecasting ability of the simple sum and Divisia monetary aggregates with respect to U.S. gross domestic product. We use two alternative Divisia aggregates, the series produced by the Center for Financial Stability (CFS Divisia) and the ones produced by the Federal Reserve Bank of St. Louis (MSI Divisia). The empirical analysis is done within a machine learning framework employing a Support Vector Regression (SVR) model equipped with two kernels: the linear and the radial basis function kernel. Our training data span the period from 1967Q1 to 2007Q4 and the out-of-sample forecasts are performed on a one quarter ahead forecasting horizon on the period 2008Q1 to 2011Q4. Our tests show that the Divisia monetary aggregates are superior to the simple sum monetary aggregates in terms of standard forecast evaluation statistics.
Keywords: GDP forecasting, SVR, Simple Sum, Divisia
JEL: E5 - Monetary Policy, Central Banking, and the Supply of Money and Credit: General
E4 - Money and Interest Rates: General
Manuscript Received : Feb 21 2013 Manuscript Accepted : Apr 29 2013

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