By David Bornstein
More than 60 percent of the world’s gross domestic product comes from global trade. This is double what it was in the 1980s. Most economists agree that the astonishing increase in trade over the past quarter century has boosted economic growth and job creation, and, in many countries, led to a decline in absolute poverty. But while the economic superhighway has spread around the globe, in many parts of the world there are still not enough on-ramps.