“In the Lexus and the Olive Tree I argued that to the extent that countries tied their economies and future to global integration and trade, it would act as a restraint on going to war with their neighbors. I first started thinking about this in the late 1990s, when, during my travels, I noticed that no two countries that both had McDonald’s had ever fought a war against each other since each got its McDonald’s. (Border skirmishes and civil wars don’t count, because McDonald’s usually served both sides.) After confirming this with McDonald’s, I offered what I called the Golden Arches Theory of Conflict Prevention. The Golden Arches Theory stipulated that when a country reached the level of economic development where it had a middle class big enough to support a network of McDonald’s it became a McDonald’s country. And people in McDonald’s countries didn’t like to fight wars anymore. They preferred to wait in line for burgers. While this was offered slightly tongue in cheek, the serious point I was trying to make was that as countries got woven into the fabric of global trade and rising living standards, which having a network of McDonald’s franchises had come to symbolize, the cost of war for victor and vanquished became prohibitively high.”
