Alan Greenspan, the longest-serving central banker of the modern era, died on June 22, 2026, at the age of 100. His passing has reignited debate over his legacy — one that straddles praise as the architect of the ‘Great Moderation’ and criticism as a key enabler of the conditions that led to the 2008 global financial crisis.
From Wall Street to the Fed
Born in New York City in 1926, Greenspan studied economics at New York University and earned his doctorate in 1977. Before leading the U.S. Federal Reserve (the Fed), he worked as an economic consultant to major corporations and served as Chair of the Council of Economic Advisers under President Gerald Ford.
His appointment as Fed Chair in 1987 coincided with one of the most volatile moments in U.S. financial history: the ‘Black Monday’ stock market crash in October of that year. The Fed’s swift injection of liquidity helped stabilize markets — an early signal of Greenspan’s crisis-management style and a defining moment in his rise to prominence.
The Era of the ‘Great Moderation’
Greenspan presided over nearly two decades of sustained U.S. economic expansion — from 1987 to 2006 — spanning four U.S. presidential administrations. During this period, annual inflation averaged just 2.9%, according to Bloomberg analysis. Dubbed the ‘Great Moderation,’ the era was marked by low inflation, relatively stable growth, rising productivity, and rapid technological advancement.
Markets watched Greenspan’s every word. Media outlets dubbed him ‘The Maestro,’ and his famously opaque language — later known as ‘Fed speak’ — became legendary on Wall Street. As he once quipped, widely cited by Reuters: ‘If I seem unduly clear to you, you must have misunderstood what I said.’
The ‘Greenspan Put’ and Its Legacy
Perhaps the most enduring concept tied to his name is the ‘Greenspan Put’ — the market belief that the Fed would step in to support financial markets during sharp downturns, typically by cutting interest rates and injecting liquidity. This implicit safety net reshaped investor behavior, fostering confidence — but also encouraging risk-taking.
Though never formalized, the idea laid the groundwork for later iterations like the ‘Bernanke Put’ and ‘Powell Put.’ Today, economists and policymakers still grapple with its long-term implications — especially how expectations of central bank intervention may influence financial stability.