Many recent papers have found that atheoretical forecasting methods using many predictors give better predictions for key macroeconomic variables than various small-model methods. The practical relevance of these results is open to question, however, because these papers generally use ex post revised data not available to forecasters and because no comparison is made to best actual practice. We provide some evidence on both of these points using a new large dataset of vintage data synchronized with the Fed's Greenbook forecast. This dataset consists of a large number of variables, as observed at the time of each Greenbook forecast since 1979. Thus, we can compare real-time large dataset predictions to both simple univariate methods and to the Greenbook forecast. For inflation we find that univariate methods are dominated by the best atheoretical large dataset methods and that these, in turn, are dominated by Greenbook. For GDP growth, in contrast, we find that once one takes account of Greenbook's advantage in evaluating the current state of the economy, neither large dataset methods nor the Greenbook process offers much advantage over a univariate autoregressive forecast.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
13397.
Length: Date of creation: Sep 2007 Date of revision: Handle: RePEc:nbr:nberwo:13397
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Find related papers by JEL classification: C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Other Model Applications E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles E37 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Forecasting and Simulation
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Domenico Giannone & Lucrezia Reichlin & Luca Sala, 2005.
"Monetary Policy in Real Time,"
Working Papers
284, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
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Domenico Giannone & Lucrezia Reichlin & Luca Sala, 2005.
"Monetary Policy in Real Time,"
NBER Chapters,
in: NBER Macroeconomics Annual 2004, Volume 19, pages 161-224
National Bureau of Economic Research, Inc.
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