IMF Working Papers-Monetary Policy Design with Recurrent Climate Shocks

November 24, 2023--Summary:
As climate change intensifies, the frequency and severity of climate-induced disasters are expected to escalate. We develop a New Keynesian Dynamic Stochastic General Equilibrium model to analyze the impact of these events on monetary policy. Our model conceptualizes these disasters as left-tail productivity shocks with a quantified likelihood, leading to a skewed distribution of outcomes.

This creates a significant trade-off for central banks, balancing increased inflation risks against reduced output.

Our results suggest modifying the Taylor rule to give equal weight to responses to both inflation and output growth, indicating a gradual approach to climate exacerbated economic fluctuations.

IMF World Economic Outlook -Global Economy in Flux, Prospects Remain Dim October 2025

October 14, 2025-- While the near-term forecast is revised up modestly, global growth remains subdued, as the newly introduced policies slowly come into focus
The global economy is adjusting to a landscape reshaped by new policy measures. Some extremes of higher tariffs were tempered, thanks to subsequent deals and resets. But the overall environment remains volatile, and temporary factors that supported activity in the first half of 2025-such as front-loading are fading.