Macroeconomic Predictions using Payments Data and Machine Learning

• URL: http://arxiv.org/abs/2209.00948v1
• Date: Fri, 2 Sep 2022 11:12:10 GMT
• Title: Macroeconomic Predictions using Payments Data and Machine Learning
• Authors: James T.E. Chapman and Ajit Desai
• Abstract summary: This paper aims to demonstrate that non-traditional and timely data can provide policymakers with sophisticated models to accurately estimate key macroeconomic indicators in near real-time. We provide a set of econometric tools to mitigate overfitting and interpretability challenges in machine learning models to improve their effectiveness for policy use. Our models with payments data, nonlinear methods, and tailored cross-validation approaches help improve macroeconomic nowcasting accuracy up to 40% -- with higher gains during the COVID-19 period.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Predicting the economy's short-term dynamics -- a vital input to economic agents' decision-making process -- often uses lagged indicators in linear models. This is typically sufficient during normal times but could prove inadequate during crisis periods. This paper aims to demonstrate that non-traditional and timely data such as retail and wholesale payments, with the aid of nonlinear machine learning approaches, can provide policymakers with sophisticated models to accurately estimate key macroeconomic indicators in near real-time. Moreover, we provide a set of econometric tools to mitigate overfitting and interpretability challenges in machine learning models to improve their effectiveness for policy use. Our models with payments data, nonlinear methods, and tailored cross-validation approaches help improve macroeconomic nowcasting accuracy up to 40\% -- with higher gains during the COVID-19 period. We observe that the contribution of payments data for economic predictions is small and linear during low and normal growth periods. However, the payments data contribution is large, asymmetrical, and nonlinear during strong negative or positive growth periods.

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