Before revision: One approach to economic freedom comes from the liberal tradition emphasizing free markets, free trade, and private property under free enterprise .
After revision: One approach to economic freedom comes from the liberal tradition emphasizing free markets, free trade, and private property , property rights being a basic human right under the Universal Declaration of Human Rights article 17 "Everyone has the right to own property alone as well as in association with others" , rights that can only be fully exercised in a free and open economy .