For nearly two decades, Alan Greenspan was the most powerful unelected person in America, a man whose sentences could lift markets or flatten them. Now that he is gone, the question that never really left Washington is back on the table: what, exactly, did his stewardship cost?

What You Should Know

Alan Greenspan, who chaired the Federal Reserve from 1987 to 2006 under four presidents, has died at 100, according to a statement from his wife, journalist Andrea Mitchell. Mitchell said he died at home from complications of Parkinson’s disease.

Greenspan led the Fed through multiple market jolts, became famous for warning of “irrational exuberance,” and later faced lasting criticism that easy-money policies helped fuel bubbles that burst after he left office.

Mitchell, the chief Washington and foreign affairs correspondent at NBC News, announced his death in a statement that was also reported by CBS News. Greenspan was 100.

To supporters, he was the rare technocrat who made the messy world of politics bend toward steady growth. To critics, he was the maestro who kept the music playing too long, then watched the room go dark after he exited.

The Fed Praise Arrived Fast, but So Did the Asterisk

John Williams, the president and CEO of the Federal Reserve Bank of New York, framed Greenspan’s tenure as institution-building rather than just rate-setting. “His extraordinary 18 years as chairman left behind an enduring legacy, and his dedication to the institution, the field of economics and public service continues to inspire generations of central bankers,” Williams said.

That glowing verdict lives alongside the timeline: Greenspan’s run overlapped what economists often call the Great Moderation, a long stretch of low inflation and solid growth that ended before the 2008 financial crisis detonated. The praise is real, and the resume is hard to match, but the record is not a simple victory lap.

He Warned of Bubbles, Then Watched Them Multiply

Greenspan’s Fed confronted the 1987 stock market crash, the late 1990s boom, and the dot-com collapse in the early 2000s. In 1996, he coined the phrase “irrational exuberance,” which entered the political bloodstream as both a prophecy and a self-indictment, depending on who is telling the story.

After the housing market imploded years later, the argument turned brutally practical: did the Fed’s low-rate environment help inflate risk, leverage, and a mortgage machine that eventually broke the economy? Greenspan ended his final term in 2006, but the policy choices from the years before that remained part of the public imagination’s case file.

The Contradiction That Followed Him Out the Door

Greenspan repeatedly pushed back against claims that he was the prime mover behind the Great Recession, calling some of the criticism a rewrite of history. At the same time, he also acknowledged misjudgments about how big banks would behave when incentives and competition turned toxic, a point that became central to the post-crisis debate over regulation.

His biography only sharpened the contrast: a New York City kid born March 6th, 1926, who studied clarinet at Juilliard, earned degrees at New York University, advised Richard Nixon, and later became Fed chair after an appointment by President Ronald Reagan. Over time, he served under George H.W. Bush, Bill Clinton, and George W. Bush, a bipartisan stamp of approval that made him seem untouchable, until he wasn’t.

Greenspan also had a reputation for resisting political pressure, while acknowledging that elected officials could be suggestive about rates even when they were not explicit. In death, that old tension remains, because the Fed’s independence is praised in theory and tested in practice, especially when markets get addicted to cheap money.

The fight over Greenspan’s legacy will not be settled by obituaries or tributes, because it is really a fight over how much power central bankers should have, and how much blame they should wear when a boom becomes a bust. The next time someone promises a soft landing, Greenspan’s shadow will be in the room.

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