The Unassuming Economist

From a paper by Matthew Busigin:

“This paper presents a novel methodology for enhancing macroeconomic output gap models through systematic residual analysis. Starting with a baseline model incorporating unemployment rate, total capacity utilization, and exchange rate dynamics, we develop a comprehensive framework for identifying and incorporating missing economic variables. Our enhanced model achieves a dramatic improvement in explanatory power, increasing R2 from 86.7% to 95.2% (8.6 percentage point improvement) while reducing root mean square error by 40.2%. The methodology successfully identifies optimal lag structures for monetary policy transmission (6 months), labor market intensive margins (3 months), and fiscal policy effects (3 months). This approach demonstrates that systematic residual analysis, guided by economic theory, can substantially improve macroeconomic model performance and provides a replicable framework for model enhancement across various economic applications.”