Air travel is pretty cheap, especially if you only take a few plane trips in your life, and 2. it's relatively easy and inexpensive to stay in touch with relatives living far away thanks to Skype, mobile phones, and inexpensive calling cards. Also 3. Even with increased industrialization in the developing world, economic opportunities are often much better in wealthy countries. Remittances, money sent home by people working abroad, are now a huge driver of economic growth in the developing world. Like in Tajikistan, for instance, remittances are 35% of the country's total gross domestic product. With all these people moving around the world, it's not surprising that globalization also means cultural blending. When people move, they don't just give up their literary, culinary, artistic, and musical traditions.