The falling cost of international business travel and communication motivates highly-skilled workers who live in developed countries to spend more of their time co-operating with less-skilled workers in developing countries. This tends to narrow the gap between developed and developing countries...

The plummeting cost of international business travel and communication has enabled highly-skilled workers resident in developed countries to become increasingly involved in production in developing countries, where they can co-operate with less-skilled workers whose wages are lower than those of...