QUESTIU Because exchange is a mutually beneficial transaction, free foreign trade among nations typically benefits both countries. However, there are some valid reasons for establishing barriers to trade. Which of the following is NOT a valid reason for a barrier to trade? Protecting domestic "infant" or developing industries from competition by foreign firms that are already established and efficient. National security To retaliate against some foreign country for limiting the importation of some good from another country All of the above are valid reasons for establishing trade barriers. 3 point