Although more and more countries adopt the idea of free trade, protectionism has rebounded in the wake of the economic crisis of 1929 and remains a reality of our days. The principle of "learning by doing", national security or unfair competition has also been proposed over time to justify the use of protectionism. Liberalization (free trade policy) and protectionism are two fundamental instruments for governments to control international trade, in other words, two different types of foreign trade policy. Free trade policy is the minimum of state intervention in foreign trade, developed by free-market forces of supply and demand, while protectionism provides for the protection of the internal market from the international competition through the use of tariff and non-tariff instruments. Protectionism according to Nicita et al. (2013) refers to the measurement taken by the government to promote the local industry in the face of international competition. Baldwin (1970) defines as any measure (public or private) that causes internationally traded goods and services, or devoted to the