Both Republican John McCain and Democrat Barack Obama would increase government's role in the economy if elected president, marking a shift away from President George W. Bush's anti-regulation ideology. "We're going to see more regulation and more government intervention in the economy," said William Niskanen, chairman of the Cato Institute. Both men have suggested more government involvement in a wide range of areas, including oil-futures trading, investment banking, climate change and home mortgages.

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