Worldwatch: A dual gap has opened in global wage trends. The wages of most workers are falling more and more behind those of top earners, even as average wages are failing to keep pace with labor productivity growth, according to new research conducted by the Worldwatch Institute for its Vital Signs Online service (www.worldwatch.org).Wage trends are heavily influenced by globalization and the economic crisis that caused the ranks of the unemployed to swell from 169 million in 2007 to 198.4 million in 2009,...