Part of the "Economics USA" series. The U.S. auto industry lost a lot of mileage in 1973 with the rise of the more efficient Japanese imports. In the 1970s, the "trigger/price mechanism" was developed in order to differentiate between fair and unfair trade practices. Debate over the North American Free Trade Agreement (NAFTA) included accusations that American jobs would suffer and American firms would relocate south of the border. Others insisted that increased trade would create new American jobs and industries. These stories illustrate the pros and cons of free trade.