International Trade Before NAFTA was passed, Congressman David Bonior of Michigan warned: “If the agreement with Mexico receives congressional approval, Michigan’s auto industry will eventually vanish.” But what actually happened was that employment in the automobile industry increased by more than 100,000 jobs over the next six years. What happens when a given country, in isolation, becomes more prosperous? It tends to buy more because it has more to buy with. And what happens when it buys more? There are more jobs created making the additional goods and services that are now in greater demand. Make that two countries and the principle remains the same. There is no fixed number of jobs that the two countries must fight over. If they both become more prosperous, they are both likely to create more jobs. The only question is whether international trade tends to make both countries more prosperous. What it comes down to is the fact that the only reason international trade takes plac...