The U.S. administration to emerge from Tuesday's presidential election will have to shift to a weak-dollar policy at some point in the next four years, a U.S. expert on trade issues told a recent symposium in Tokyo.

This would inevitably cause greater friction with America's major trading partners, including Japan and Europe, said Bruce Stokes, international economics columnist for the National Journal, a Washington-based public policy magazine.

Stokes was addressing an Oct. 27 symposium at Keidanren Kaikan that was organized by Keizai Koho Center to discuss the economic and political implications of the Nov. 2 election to choose between Republican incumbent George W. Bush or Democrat John Kerry.