Yield Curves Flatten as Investors Rethink Outlook for Monetary Policy

Yields on short-dated notes have moved sharply higher in recent weeks, while those on longer-dated bonds have fallen modestly in many countries. This flattening of yield curves has come in response to worries about inflationary risks potentially being more persistent in the near term and lasting longer than previously anticipated.

The speed and magnitude of this repricing suggest investors expect central banks in developed countries such as the U.K., U.S., Australia, and Canada to start tightening monetary conditions sooner and at a swifter pace than previously thought. Many investors are left wondering what to expect from the next stage of monetary policy.

Despite the recent volatility, market pricing still indicates a belief that central banks will act in a credible manner to keep inflation expectations well-anchored. Long-term inflationary expectations have also remained relatively stable.

Flattening forces emerge

Flattening of yield curves typically occurs relatively later in an economic cycle as investors expect central banks to raise short-term policy rates, which pushes up short-dated yields relative to longer-term ones. Yield curve behavior can thus foreshadow changes in monetary policy and the economic outlook.

Much of the recent change in market thinking relates to questions about the persistence of supply chain disruptions and supply-demand mismatches in various sectors as the global economy emerges from the COVID-19-driven slowdown. With some inflation metrics remaining elevated, market participants are envisioning a more imminent reduction in quantitative easing, with interest rate hikes on the horizon.