In 1993, Rubin went to Washington, where he headed the National Economic Council until he was named the Secretary of the Treasury in 1995.
When Rubin stepped down it was widely speculated that he'd return to Wall Street, garnering a multi-million dollar contract. Few were surprised when he joined Citigroup as one of three co-chairs.
Rubin could not be reached for comment yesterday, and it was not clear if he had decided on a topic for his speech.
Richard Zeckhauser , a professor at the Kennedy School of Government, speculated that Rubin would probably discuss world financial issues, or the privileges of a Harvard education. But he said that Rubin could speak about any number of topics.
"I can think he could surprise us," Zeckhauser said. "Since he's out of office, he's not controlled in any way [on] what he could talk about."
-Staff writer Joseph P. Flood can be reached at flood@fas.harvard.edu