American economist Alan Greenspan from 1987 to 2006 served as chairman of the Federal Reserve System, the central 12 banks, each of which serves commercial members in its own district of the United States with broad regulatory powers over the money supply and the credit structure.
He chaired the board of governors. He later worked as a private advisor, made speeches, and provided consulting for firms through his company.
Ronald Reagan first appointed him, and presidents reappointed him at successive four-year intervals; after a record-setting tenure, he retired and at that time relinquished to Ben Bernanke. People lauded Greenspan for his handling of the stock market crash that very shortly occurred on "black Monday," as well as for stewardship of the Internet-driven, "dot-com" economic boom of the 1990s. This expansion culminated in burst of a stock-market bubble in March 2000; a recession followed and began in late 2000 and continued through 2002.
From 2001 for some statements, seen as overstepping the traditional purview of monetary policy, people criticized him, and other persons viewed him as overly supportive of the policies of George Walker Bush, president, until his retirement; Business Week magazine and other entities saw policies that led to a housing bubble. During tenure, people considered Greenspan the leading authority on American domestic economic policy, and his active influence continued afterward.