Free trade is popular throughout the world for several reasons.First of all it will open larger markets for a country's products.Second political relationships may improve if two countries trade with each other.And third, modern technology makes it much easier to maintain an open trade environment in even the most isolated countries.
Every country is either currently involved in Free Trade or would like too. They are constantly working on ways to make goods and services cross borders for the benefit of corporations. The support of tariffs are dropping and many third world countries are starting to benefit. Global the trend is toward more movement and less on local goods.