Publication Type
Working Paper
Version
publishedVersion
Publication Date
5-2020
Abstract
This paper introduces novel methods to combine forecasts made by machine learning techniques. Machine learning methods have found many successful applications in predicting the response variable. However, they ignore model uncertainty when the relationship between the response variable and the predictors is nonlinear. To further improve the forecasting performance, we propose a general framework to combine multiple forecasts from machine learning techniques. Simulation studies show that the proposed machine-learning-based forecast combinations work well. In empirical applications to forecast key macroeconomic and financial variables, we find that the proposed methods can produce more accurate forecasts than individual machine learning techniques and the simple average method, later of which is known as hard to beat in the literature.
Keywords
Model uncertainty, Machine learning, Nonlinearity, Forecast combinations
Discipline
Econometrics
Research Areas
Econometrics
First Page
1
Last Page
45
Publisher
SMU Economics and Statistics Working Paper Series, Paper No. 13-2020
Citation
QIU, Yue; XIE, Tian; and Jun YU.
Forecast combinations in machine learning. (2020). 1-45.
Available at: https://ink.library.smu.edu.sg/soe_research/2379
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.