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Smoothing-based Initialization for Learning-to-Forecast Algorithms

Michele Berardi () and Jaqueson Galimberti ()

No 17-425, KOF Working papers from KOF Swiss Economic Institute, ETH Zurich

Abstract: Under adaptive learning,recursive algorithms are proposed to represent how agents update their beliefs over time. For applied purposes these algorithms require initial estimates of agents perceived law of motion. Obtaining appropriate initial estimates can become prohibitive within the usual data availability restrictions of macroeconomics. To circumvent this issue we propose a new smoothing-based initialization routine that optimizes the use of a training sample of data to obtain initials consistent with the statistical properties of the learning algorithm. Our method is generically formulated to cover different specifications of the learning mechanism, such as the Least Squares and the Stochastic Gradient algorithms. Using simulations we show that our method is able to speed up the convergence of initial estimates in exchange for a higher computational cost.

New Economics Papers: this item is included in nep-cmp
Date: 2017-01
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Journal Article: SMOOTHING-BASED INITIALIZATION FOR LEARNING-TO-FORECAST ALGORITHMS (2019) Downloads
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