The longest-serving modern Fed chairman presided over two decades of boom — and left a contested legacy that critics tie to the 2008 crash. He coined “irrational exuberance” and became, for a generation, the most powerful economic policymaker on earth.
By The Atlantic Digest Foreign & Economy Desk · WASHINGTON · June 22, 2026
WASHINGTON — Alan Greenspan, the longtime chairman of the Federal Reserve who was known as “the Maestro” and became one of the most influential economic policymakers of his era, died on Monday at his home. He was 100. His death, from complications of Parkinson’s disease, was announced by his wife of 29 years, the NBC News correspondent Andrea Mitchell. “Alan passed away at our home this morning at the age of 100,” she said in a statement, calling him “a giant of a man who helped shape the U.S. economy for decades under presidents of both parties, but was always honest in acknowledging his mistakes.”
Greenspan led the American central bank for more than eighteen years — the second-longest tenure in its history — across five terms and four presidencies. Appointed by Ronald Reagan in 1987, he stayed on under George H. W. Bush, Bill Clinton and George W. Bush before retiring in January 2006. For much of that time he was, as a 1997 profile put it, arguably the most powerful person in the country after the president — a figure whose every word money managers parsed for clues to the direction of markets.
“How do we know when irrational exuberance has unduly escalated asset values?” — Alan Greenspan, December 5, 1996
BLACK MONDAY TO ‘IRRATIONAL EXUBERANCE’
His trial by fire came almost immediately. Two months into his tenure, on October 19, 1987 — “Black Monday” — the Dow Jones Industrial Average plunged 22% in its largest one-day percentage decline. The next day Greenspan announced the Fed stood ready “to serve as a source of liquidity to support the economic and financial system,” a swift assurance widely credited with steadying investors and speeding the market’s recovery. It set the template for a career defined by the central bank’s readiness to backstop markets in crisis.
Nearly a decade later, a single phrase made him famous beyond Wall Street. In a December 1996 speech, musing on how policymakers might detect dangerous asset bubbles, he asked how anyone could know “when irrational exuberance has unduly escalated asset values.” The two words entered the lexicon, and briefly sent markets into a spin — a demonstration of the near-mystical authority he had accumulated.
THE LONG BOOM
Greenspan’s reputation was forged in prosperity. He presided over one of the strongest peacetime expansions in American history, a boom that stretched roughly from 1991 to 2001, during which unemployment fell below 4%, the stock market reached then-record highs, and the federal government ran budget surpluses. When the dot-com bubble burst in 2000 and the economy slipped into recession, compounded by the shock of the September 11, 2001 attacks, Greenspan and the Fed cut interest rates to levels then unheard of — eventually to 1% — to cushion the blow. Admirers cast him as a virtuoso reading the economy by intuition and data alike; the “Maestro” nickname stuck.
THE CONTESTED LEGACY
Yet the same low rates and faith in deregulation would shadow his reputation. A self-described libertarian Republican who had been a friend and associate of the novelist-philosopher Ayn Rand, Greenspan championed a hands-off approach to financial markets, trusting institutions to police themselves. Critics argue that the ultra-low interest rates of the early 2000s and his resistance to regulation helped inflate the housing bubble whose collapse triggered the global financial crisis of 2007–08. While in office, Greenspan dismissed talk of a nationwide housing bubble; when it burst, he testified to Congress in October 2008 that he was in “a state of shocked disbelief,” calling the meltdown a “once-in-a-century credit tsunami” whose breadth was “much broader than anything I could have imagined.” He later maintained that his policies had not caused the crisis, and that he had been right “70% of the time.”
That tension — between the architect of the long boom and the policymaker faulted for the bust that followed — will frame how history weighs him. As his wife noted, he was “always honest in acknowledging his mistakes.”
FROM JAZZ CLUBS TO THE FED
His path to power was anything but conventional. Born in New York City on March 6, 1926, to a stockbroker father, and raised largely by his mother’s family of Russian Jewish immigrants after his parents divorced, Greenspan was a musical prodigy before he was an economist. He played saxophone and clarinet, studied briefly at the Juilliard School, and toured with Woody Herman’s jazz band — “the band intellectual who did their income taxes,” he once joked. He earned degrees in economics from New York University and, at 51, a doctorate; among his mentors was the future Fed chairman Arthur Burns. Before the Fed, he ran the consulting firm Townsend-Greenspan, chaired President Ford’s Council of Economic Advisers, and led the commission that reformed Social Security in the early 1980s.
Honoured with the Presidential Medal of Freedom in 2005 and an honorary British knighthood in 2002, he wrote several books after leaving the Fed, including the best-selling 2007 memoir “The Age of Turbulence.” In it he praised Presidents Ford and Clinton, sharply criticised George W. Bush’s fiscal record, and — in later years — took issue with Donald Trump’s pressure on the Fed to lower rates. In 1997 he married Mitchell in a ceremony officiated by Supreme Court Justice Ruth Bader Ginsburg.
WHY IT MATTERS NOW
Greenspan’s death lands at a charged moment for the institution he defined. The Federal Reserve’s independence has again become a live political issue, and the debates he embodied — over how aggressively a central bank should intervene, how far markets can be trusted to regulate themselves, and how to balance growth against financial stability — remain unresolved. For nearly two decades he was the closest thing the global economy had to a single steward; his passing closes a chapter that ran from the late Cold War through the dawn of the digital age, and invites a fresh reckoning with the model of central banking he came to personify.
He is survived by his wife, Andrea Mitchell. Tributes from across the political and financial worlds were expected through the day.
