DNB Analysis Finds Euro Area Monetary Policy Weakens Under Financial and Geopolitical Uncertainty

Key Takeaways

• De Nederlandsche Bank published an analysis concluding that monetary policy transmission in the euro area is weaker when uncertainty is high, particularly financial and geopolitical uncertainty.
• Compliance and risk teams should recognize that central banks may need to respond more forcefully to achieve the same effect on inflation.
• This could produce larger or more volatile interest rate movements that affect stress testing, interest rate risk management, and scenario planning.

Deep Dive

De Nederlandsche Bank published an analysis concluding that monetary policy transmission in the euro area is weaker when uncertainty is high, particularly financial and geopolitical uncertainty. Compliance and risk teams should recognize that central banks may need to respond more forcefully to achieve the same effect on inflation. This could produce larger or more volatile interest rate movements that affect stress testing, interest rate risk management, and scenario planning.

The authors (Maria Sole Pagliari and Minke van der Heijden) separate uncertainty into three dimensions, financial, macroeconomic, and geopolitical, and build euro area-specific benchmarks for each from a broad set of indicators. They find that monetary policy has a weaker effect in all three, with financial and geopolitical uncertainty playing a significant role.

The main implication is that central banks must consider both the form and the level of uncertainty when setting the policy rate. In periods of great uncertainty they may be forced to react more strongly to achieve the same inflation outcome. For financial institutions, this suggests that policy rate paths may be less predictable and that rate changes may be larger than historical relationships imply. Assumptions about how quickly and fully policy changes pass through to lending rates, deposit pricing, funding costs, and asset valuations may be less reliable when uncertainty is elevated.

No deadlines, implementation dates, or reporting requirements are included. The publication date is 14 September 2026. Because the document is analytical, it may inform later supervisory dialogue, DNB expectations on stress testing and scenario design, or ECB policy communication, but none of these is stated in the content provided.

Recommended actions for compliance and risk professionals:
- Share the analysis with Treasury, ALM, Market Risk, and Stress Testing teams.
- Review whether interest rate risk in the banking book (IRRBB) models, stress scenarios, and sensitivity assumptions reflect weaker or less predictable transmission during uncertain periods.
- Consider adding financial and geopolitical uncertainty indicators to scenario analysis and early-warning dashboards.
- Document in risk appetite and ICAAP/ILAAP processes how heightened uncertainty could amplify rate volatility.
- Monitor DNB and ECB communications for follow-on supervisory expectations.

Overall risk impact is moderate and indirect. The greatest exposure is to institutions with significant rate sensitivity, such as those with large maturity mismatches, floating-rate portfolios, or reliance on market funding. Model risk is also a concern if governance frameworks assume stable policy transmission. Firms with Dutch or euro area operations should treat the findings as a prompt to challenge existing assumptions rather than as a trigger for immediate remediation.

Source: De Nederlandsche Bank