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Understanding Inflation: The Role of Oil Prices and Money Supply

4/14/2026, 12:17:28 PM

Core Event: Inflation Driven by Oil Prices and Monetary Policy

The recent rise in consumer prices, reported at 3.3% year-over-year in March 2026, has been attributed by many analysts to a spike in oil prices following Iran's closure of the Strait of Hormuz. However, economist Steve Hanke argues that the primary driver of inflation is not the oil price increase itself but rather the significant growth in the money supply.

Background & Context: Historical Precedents

Hanke draws parallels to Japan's inflationary experience in the 1970s, which he claims was fueled by excessive monetary policy rather than oil crises. He notes that prior to the second oil shock in 1979, Japan's money supply was growing at an unsustainable rate of 11.2%, leading to inflation rates of 13.2%. Hanke emphasizes that had the money supply been moderated, the inflationary surge could have been avoided.

Key Figures: Steve Hanke's Perspective

Steve Hanke, a professor of applied economics at Johns Hopkins University, is a prominent voice in the monetarist school of thought. He contends that the correlation between rising oil prices and inflation is misleading. Hanke asserts that inflation was already accelerating before the current geopolitical tensions and will continue to do so regardless of oil price fluctuations. He emphasizes that the real issue lies in the banking sector's role in creating money, with commercial banks responsible for 80% of new money supply.

Data & Statistics: Money Supply Trends

Hanke highlights a significant increase in commercial bank lending, which turned positive in March 2024 after a period of negative growth. By February 2026, this lending had surged to a rate of 6.6%, surpassing the levels necessary to maintain a 2% inflation target. He attributes this surge to regulatory changes that encouraged banks to loosen lending practices.

Criticism & Opposition: Alternative Views

While Hanke's perspective challenges the mainstream narrative, many economists maintain that the immediate impact of rising oil prices is a critical factor in the current inflationary environment. They argue that as oil prices increase, the costs of goods and services rise, leading to a direct impact on consumer prices.

Official Statements & Responses

In response to the inflation data, various analysts have pointed to the oil price spike as a primary cause. Hanke, however, counters that the inflationary trend is a consequence of monetary policy decisions made over the past two years, rather than a direct result of supply chain disruptions or oil price shocks.

What's Next: Future Implications

As the conflict in the Gulf region continues, Hanke warns that the inflation issue is likely to persist, regardless of oil price stabilization. He advocates for a reevaluation of monetary policy to prevent further inflationary pressures, suggesting that lessons from historical precedents like Japan's experience should inform current economic strategies.

Verbatim Quotes

  • “Everyone’s been writing about how oil prices are causing inflation. It only looks that way. The two are correlated, but the first doesn’t cause the second at all,” — Steve Hanke, Professor of Applied Economics
  • “The Fed only creates the other 20%. It’s the big surge in that banking credit that’s pushing up prices.” — Steve Hanke
  • “The oil crisis will end with the war, it’s the inflation predicament that has legs.” — Steve Hanke

This analysis underscores the complexity of inflation dynamics, highlighting the interplay between oil prices and monetary policy as critical factors in shaping economic outcomes.