History of Inflation Targeting by Central Banks

The history of inflation targeting by central banks traces a shift from discretionary, often secretive monetary policy to transparent, target-based frameworks. New Zealand pioneered formal inflation targeting in 1990; two decades later, most advanced economies had adopted similar regimes, anchoring inflation expectations and credibility.

The Pre-Targeting Era: Opacity and Instability

Before the 1990s, most central banks did not publish explicit inflation targets. Monetary policy was conducted behind closed doors; interest rate decisions and the reasoning behind them were often opaque to the public and financial markets.

This opacity had consequences. Without a clear, credible inflation commitment, inflation expectations could drift upward. Workers and firms expected higher wages and prices; companies raised prices in anticipation, fueling a self-reinforcing cycle. The 1970s and 1980s saw persistently elevated inflation in the United States, United Kingdom, and other advanced economies, requiring painful recessions and interest rate shocks to break the cycle.

Economists and policymakers increasingly recognized that credibility—the public’s belief that the central bank will actually control inflation—was as important as the interest rate itself. If inflation expectations are anchored to a credible target, wage and price pressures remain moderate, and the central bank can achieve price stability with less economic pain.

New Zealand’s Breakthrough: 1990

New Zealand pioneered formal inflation targeting in December 1990 under Reserve Bank Governor Spencer. The framework was revolutionary:

• Published target: The central bank committed to keeping inflation in a 0–2% range (later 1.5–2.5%).
• Explicit accountability: The governor signed an agreement (the Policy Targets Agreement) with the government, publicly committing to the target.
• Monetary policy committee: Decisions were transparent and explained to the public.
• Operational independence: The central bank had the authority to set interest rates to meet the target, insulated from political pressure.

The results were striking. Within a few years, inflation fell from 7% to near-target levels, and inflation expectations stabilized. The regime gave the Reserve Bank credibility it had lacked.

Global Adoption Through the 1990s and 2000s

The success in New Zealand caught the attention of other central banks facing stubborn inflation or credibility deficits.

Early adopters (1991–1995):

• Canada (1991) adopted a target range of 1–3%, later narrowed to 1.5–2.5%.
• Australia (1993) committed to an average inflation rate of 2–3%.
• Sweden (1995) adopted a 2% target after high inflation in the early 1990s.
• Finland, Spain, and others followed before adopting the euro in 1999.

Major economies (late 1990s–2010s):

• United Kingdom (1997) formally adopted inflation targeting under the newly independent Bank of England. Target: 2.5%, later 2% on a different measure.
• European Central Bank (1999) launched with a target of “below 2%” inflation for the euro zone. Despite not using the term “inflation targeting,” the ECB operated under a price-stability framework.
• United States (2012) was a relative latecomer. The Federal Reserve did not formally adopt a 2% target until 2012, though it had de facto pursued price stability for decades under Paul Volcker and subsequent chairs.
• Japan (2013) adopted explicit inflation targeting (initially 1%, later 2%) under Abenomics, seeking to break chronic deflation.
• Bank of Canada (1991, reaffirmed repeatedly) maintained a 1.5–2.5% target even as the range shifted.

How Inflation Targeting Works

An inflation-targeting regime has four pillars:

1. Published target: A specific inflation rate or narrow range (typically 2%), set by law or central bank charter.

2. Accountability: The central bank reports publicly (quarterly or annually) on progress toward the target and explains deviations. Governors may face removal if persistently off-target.

3. Forward guidance: The central bank communicates its interest rate path and inflation forecast. Markets and the public can anticipate future policy moves.

4. Operational independence: The central bank controls interest rates and money supply without government veto, protecting the target from short-term political pressure for stimulus.

Why Inflation Targeting Succeeded

Inflation targeting worked because it solved two credibility problems:

1. Inflation expectations — By publishing a target and demonstrating commitment via interest rate moves, central banks anchored expectations. Workers stopped demanding 5% wage raises “just in case”; firms stopped raising prices preemptively. Inflation psychology shifted.

2. Political insulation — Political pressure often pushes toward loose money and growth in election years. Inflation targeting, backed by operational independence, insulated central banks from this pressure. Even when politicians complained, the central bank could say “we are mandated to hit 2% inflation; that is the law.”

The result: lower, more stable inflation; lower inflation expectations; and, in many countries, lower unemployment for extended periods because monetary policy could focus on price stability without sacrificing growth.

Challenges and Evolution

Over three decades, inflation targeting has evolved and faced criticism:

Measurement issues — Different countries use different inflation measures (CPI, core inflation, etc.). Some debate whether 2% is optimal, too low, or too high. Rising asset prices (housing, stocks) sit outside traditional inflation measures, creating blind spots.

Dual mandates — The U.S. Federal Reserve has a dual mandate: price stability and full employment. This creates tension. When inflation rises due to supply shocks (oil prices), the Fed must choose whether to tighten aggressively (risking job losses) or tolerate inflation temporarily. The post-2020 inflation surge exposed this trade-off.

Zero lower bound — When interest rates hit zero and inflation remains stubbornly low, traditional inflation targeting breaks down. Central banks have had to adopt quantitative easing and forward guidance instead of raising rates. This blurs the line between monetary and fiscal policy.

Supply shocks — Inflation targeting assumes the central bank can control inflation by adjusting demand. But when inflation is driven by supply (pandemic disruptions, energy prices), the central bank’s tools are limited. Tightening monetary policy curbs inflation but also slows growth; loosening keeps growth but allows inflation to persist.

Financial stability — Focusing narrowly on inflation can miss asset bubbles in housing, credit, or equities. Some economists argue inflation targeting should be broadened to include financial stability or macroprudential oversight.

Modern Inflation Targeting Frameworks

Today, nearly all major central banks operate under some form of inflation targeting, though frameworks vary:

• Symmetric vs. asymmetric: Most targets are symmetric (2% ± 1%), but some (e.g., ECB) had asymmetric ranges, more tolerant of undershoots than overshoots.
• Average inflation targeting: The Fed shifted in 2020 to “average inflation targeting,” tolerating above-target inflation for a time if prior years were below target, smoothing out cyclical misses.
• Flexible vs. strict: Some central banks (like the Reserve Bank of New Zealand) are more flexible, accepting deviations if caused by supply shocks; others (historically, the ECB) were stricter.

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