Robert Rubin was sworn in as the seventieth U.S. Secretary of the Treasury in January 1995 in a brisk ceremony attended only by his wife and a few colleagues. As soon as the ceremony was over, he began an emergency meeting with President Bill Clinton on the financial crisis in Mexico. This was not only a harbinger of things to come during what would prove to be a rocky period in the global economy; it also captured the essence of Rubin himself--short on formality, quick to get into the nitty-gritty.
From his early years in the storied arbitrage department at Goldman Sachs to his current...