The "dismal science" truly shines in this optimistic talk, as economist Alex Tabarrok argues free trade and globalization are shaping our once-divided world into a community of idea-sharing more healthy, happy and prosperous than...

Cairo, Egypt, is one of the world’s oldest and largest cities, growing for thousands of years along the Nile River. While it has a rich history and culture, modern Cairo struggles with overcrowding, poor housing, and climate change,...