A Growth-Augmented Phillips Curve

Empirical studies find that the link between inflation and economic slack has weakened in recent decades, a development that could hamper monetary policymakers as they aim to achieve their inflation objective. We show that while the role of economic slack has diminished, economic growth has become a significant driver of inflation dynamics, indicating that the link between inflation and economic activity remains but the relevant gauge of activity has changed. The new evidence suggests that the ongoing COVID-19-related recession could induce substantial disinflationary pressure.