We compare sparse and dense representations of predictive models in macroeconomics, microeconomics, and finance. To deal with a large number of possible predictors, we specify a prior that allows for both variable selection and shrinkage. The posterior distribution does not typically concentrate on a single sparse model, but on a wide set of models that often include many predictors.
MLA
Giannone, Domenico, et al. “Economic Predictions with Big Data: The Illusion of Sparsity.” Econometrica, vol. 89, .no 5, Econometric Society, 2021, pp. 2409-2437, https://doi.org/10.3982/ECTA17842
Chicago
Giannone, Domenico, Michele Lenza, and Giorgio E. Primiceri. “Economic Predictions with Big Data: The Illusion of Sparsity.” Econometrica, 89, .no 5, (Econometric Society: 2021), 2409-2437. https://doi.org/10.3982/ECTA17842
APA
Giannone, D., Lenza, M., & Primiceri, G. E. (2021). Economic Predictions with Big Data: The Illusion of Sparsity. Econometrica, 89(5), 2409-2437. https://doi.org/10.3982/ECTA17842
Supplement to "Economic Predictions with Big Data: The Illusion of Sparsity"
This document contains some additional results and technical details not included in the main body of the paper. In particular, we present: i) more Monte Carlo simulation evidence; ii) the details of our out-of-sample forecasting exercise. This supplement is not self-contained, so readers are advised to read the main paper first.
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