Greenspan is a "god of wealth" who "sneezes and it rains all over the world". He created a "zero-inflation" economic miracle during the Clinton era. An American media said during the 1996 U.S. presidential election: "It doesn't matter who is president, as long as Greenspan is the chairman of the Federal Reserve."

Perhaps he is aware that his influence is too great. , in order not to bring too much impact to the market, Greenspan's speech has always been very vague, which is why his famous saying: "If you think you understand the exact meaning of my speech, then you must be right. The speech was misunderstood."

The 2007 subprime housing credit crisis finally broke out in the summer of 2007 after Greenspan left office. A series of financial institutions such as Bear Stearns, Countrywide, Citi, Merrill Lynch, and UBS have made record writedowns of their assets. Some blame Greenspan. In his memoirs, Greenspan said: President Bush turned the U.S. Treasury from surplus to deficit, which was also the main reason for the subprime housing credit crisis. September 16, 2007: Former U.S. Federal Reserve Director Alan Greenspan stated in his memoirs that for political reasons, it was inconvenient for him to admit what we all know was that the reason for sending troops to Iraq was for oil.

Received a master's degree in economics from New York University in 1950. After graduation, he entered Columbia University for further study, but later dropped out. He was a friend of Ayn Rand and was influenced by him, and his stance focused on the market system. In 1954, the two of them founded Townsend-Greenspan & Co. together.

From 1974 to 1977, he served as chairman of the Council of Economic Advisors during Ford's presidential term. Greenspan received his PhD in 1977. In the mid-1980s, Greenspan became a member of the board of directors of Alcoa.

On August 11, 1987, Greenspan became chairman of the Federal Reserve Board. During his tenure, he gradually lowered the federal funds rate to 1%, and then gradually increased it to 5.25%. The rise and fall of interest rates has always been Greenspan's main economic policy approach. The U.S. economy under his guidance has experienced two recessions, a stock market bubble and the longest period of growth in history. He was nominated multiple times by Reagan, Bush Sr. and Clinton. By May 18, 2004, President George W. Bush nominated him to succeed him. This was his fifth re-election as chairman of the Federal Reserve, which was unprecedented in American history.

On January 31, 2006, Greenspan resigned as chairman of the Federal Reserve. He was later appointed as an honorary adviser to British Chancellor of the Exchequer Gordon Gordon, and plans to continue writing books.

In 2002 he was awarded the title KBE and Officer of the French Legion of Honor. In 2004, he was awarded an honorary doctorate by Prince Philip (Duke of Edinburgh, Honorary Vice-Chancellor of the University of Edinburgh, husband of Queen Elizabeth II) at McEwen Hall, University of Edinburgh.

Classic quote: "If I seem unduly clear to you, you must have misunderstood." what I said.)