Fig. 4: Ensemble learning of longitudinal (panel) macroeconomic data.
From: AI-assisted discovery of quantitative and formal models in social science
a Country-level macroeconomic data on capital and income per capita, savings rates, and population growth for 18 OECD member countries. b Ensemble learning of the Solow economic growth model. The error distribution of the differential equation, applied to each country, is shown for three expressions generated with increasing levels of complexity regularization. The identification of outliers may inform alternative explanations, hidden parameters, or higher-order corrections to the economic model.
