WASHINGTON, June 13 -- The Center for Strategic and International Studies issued the following commentary on June 12 by Mark Sobel, non-resident senior adviser for the economics program and Matthew P. Goodman, senior vice president for economics and Simon chair in political economy: When postponing this year's Group of Seven (G7) summit to at least September, President Trump said on May 30 that the forum is "very outdated." He spoke about a new "G10" or "G11," incorporating other countries such more PR