Sir William Arthur Lewis, Trailblazing Economist, Honored With a Google Doodle Lewis was a trailblazing economist and thinker who became the first Black academic to hold a chair in a British university. By Helen Holmes
How Blockchain Technology Can Help Poor People Around the World Already becoming a darling of Wall Street, blockchain technology's biggest real benefits could come to the world's poorest people. Here's how. By Nir Kshetri
Innovation and Research Suffer When Visa Rules Keep Scientists at Home Scientists from the developing world perceive current visa rules as a major impediment to professional travel. They miss out on opportunities to collaborate globally. By John W. Wilson and Duan Biggs