How Central Banks Are Rethinking Inflation Targeting in an Era of Low Interest Rates

For much of the past three decades, inflation targeting was the cornerstone of monetary policy in major economies. Central banks set a clear numerical goal—most commonly around 2%—and adjusted interest rates to keep price increases in check. But with policy rates near zero or negative in many developed countries, and inflation persistently below target even before the recent pandemic-related price swings, the traditional targeting framework has come under increasing strain. Central banks are now exploring alternative approaches that better fit a world where the neutral rate of interest is structurally lower.

Recent Trends in Monetary Policy

In the years leading up to the current era, central banks have gradually moved away from rigid inflation targets. The U.S. Federal Reserve adopted a flexible average inflation targeting (AIT) framework in 2020, allowing inflation to run moderately above 2% after periods of undershooting. The European Central Bank concluded its strategy review by shifting to a symmetric 2% target and acknowledging that rates may need to stay accommodative for longer. The Bank of Japan has long struggled with deflationary pressures and maintains a yield curve control policy alongside its inflation aim. These developments signal a broad recognition that the traditional "pre-emptive tightening" approach is less effective when rates are already at the floor.

A growing number of central banks now emphasize "make-up strategies"—committing to tolerate higher inflation for a time to compensate for past shortfalls. Some emerging-market economies have also adopted more flexible targeting bands, often extending the horizon over which the target is to be met, to reduce the risk of policy mistakes when headroom is minimal.

Background: Why Inflation Targeting Rose and Fell

Inflation targeting gained wide acceptance in the 1990s as a transparent, rule-based way to anchor expectations and build central bank credibility. It helped reduce the high and volatile inflation of the 1970s and 1980s. However, the economic environment changed. Secular forces—aging populations, lower productivity growth, global savings gluts—pushed the natural rate of interest down. During the 2010s, core inflation in advanced economies frequently fell short of 2% targets, leaving central banks with little room to cut rates before hitting the effective lower bound.

Traditional models assumed a positive equilibrium policy rate that could easily be adjusted. When that rate turned negative or barely positive, the policy toolkit had to expand to include asset purchases, forward guidance, and negative rates. The simple symmetric target—act too aggressively when inflation slightly overshoots and too timidly when it undershoots—became asymmetric in practice: central banks proved far more willing to cut rates during undershoots than to raise them during overshoots. This eroded the symmetrical discipline the framework was meant to provide.

Concerns for Businesses and Households

The rethinking of inflation targeting raises several practical concerns for end users of monetary policy:

• Planning uncertainty: If central banks periodically change the definition or horizon of the target, businesses and investors may find it harder to price long-term contracts or capital projects.
• Volatility risk: Shifting to average targeting could allow inflation to run temporarily high, creating a risk of sharper corrections if inflation expectations unanchor.
• Saving vs. borrowing: Persistently low policy rates already penalize savers; a more accommodative inflation bias may further erode real returns on conservative savings.
• Borrower relief: Conversely, low real rates make debt servicing easier for households and governments, but only if inflation stays contained rather than spiraling.

Likely Impact on Monetary Policy

The evolution away from strict point targeting is likely to reshape central bank operations in several ways:

• More asymmetric frameworks: As seen with AIT, central banks will issue explicit guidance that inflation can run above target for extended periods to make up for past misses, effectively lowering the average policy rate over the cycle.
• Greater reliance on unconventional tools: Forward guidance and quantitative easing will remain standard tools, especially if the neutral rate stays low. Limits on asset purchases and credit channel effects will continue to be tested.
• Closer coordination with fiscal policy: With less room for rate cuts, central banks may more openly encourage fiscal support during downturns, raising questions about independence and debt sustainability.
• Diverse national approaches: Some central banks (e.g., in commodity-exporting economies) may keep tighter inflation vigilance, while others exploit the flexibility to support employment more actively.

What to Watch Next

The direction of reform depends on how several evolving factors play out. Key items to monitor include:

• Central bank strategy reviews: Several major central banks have announced periodic reviews (e.g., the Fed’s five-year review of its framework, the ECB’s next strategy reassessment). Their conclusions will signal whether average targeting becomes the norm.
• Inflation expectations indicators: Market-based and survey-based long-run expectations, currently stable near 2% in most developed economies, will test whether flexible approaches are credible or breed unanchoring.
• Global competition for monetary space: As one currency area adjusts its framework, others may follow to avoid large exchange rate swings that complicate trade and inflation.
• Digital currency developments: Central bank digital currencies could alter the transmission mechanism and the effective lower bound, potentially reducing the need to rely on borrowing from fiscal expansion to hit inflation goals.

In sum, the era of low interest rates has forced central banks to rethink the simple inflation target as their primary guide. The new frameworks aim to be both more flexible and more symmetric in practice, but they also introduce new complexities. Policymakers will need to communicate their intentions clearly, while remaining ready to adapt if inflation dynamics or the neutral rate shift again.