In the last few decades most Africa countries have implemented comprehensive trade liberalization policies by participating in global multilateral trade processes and in regional economic integration efforts to achieve sustainable economic growth and to eliminate poverty on the continent. In addition to classical economists’ argument about the comparative advantage, trade liberalization enhances strong competition, promotes goods in a larger market and transfers technology. It hence increases efficiency in production. Thus, many developing countries in Africa have opened their markets. This involves reducing tariff and non-tariff barriers and providing more uniform levels of protection among similar member countries.