The first worldwide peaceful change in the current international order has led to a relative shift that has greatly generated diverse refinement in the thoughts of security. The discussion on the re-conceptualization of security has clearly continued to be self-centered often due to the lack of knowhow on the proceeding theoretical debates. The theoretical approaches that revolve around security include rationalist theories, such as realism and liberalism, historical case studies, reflectivism, social or constructivism approaches. Rationalism is based on positivism, and the idea that political and social incidents can be elaborated just in the same way the scientists explain the natural world.
Reflectivism approach argues that rationalism theory fails to put in place the international aspects of politics. Constructivism, on the other hand, does not agree with the concepts of anarchy, self- help and realism on security. The US defense and foreign policies are based on the rationalist approach. Studies reveal that the realism, which is a theory under the rationalist approach, is used to analyze security issues in the USA. It was first used during the Cold War (Brauch, 2008). It is the most applicable because it assumes that international system is held to be anarchic in the sense that states should only arrive at agreements with other states without being inclined by any actor. The states are also assumed to follow their own interest, and their objective is attaining as many resources as possible because of their unitary (Collins, 2007).
Free trade occurs when there exist no trade barriers that are put by the governments so as to encourage free flow of goods and services in any two or more trading nations. It will be realized that subsidies and tariffs usually protect the domestic producers from competing internationally and prevent trade flows. Free trade ideals should be encouraged because they follow positive impacts to the economy (Mankiw, 2007).
It makes a country to produce those goods that have comparative advantage, and import those that do not have comparative advantage. This, in turn, increases their production, because it efficiently uses its available resources to concentrate on producing the commodity which has a comparative advantage. This encourages specialization and from the trade flows it can easily import what it does not produce.
It results to consumer satisfaction. Studies reveal that free trade leads to formation of a global market that further encourages competition. Increased competition leads to innovations, thereby resulting to production of commodities that add value to the consumers. This creates consumer satisfaction and loyalty.
It encourages creation of jobs, and it, as a result, leads to increased production. Literally, increased production expands the national revenues that encourage the economic growth. Wages, on the other hand, increaseas a result of the increased production. Studies reveal that in the USA through its strategy of lowering trade restrictions the gross domestic product has greatly raised.
Free trade leads to gains in the foreign exchange and reduces poverty levels. Countries are able to trade more freely from one country to the other which results to benefits from the exchange of currencies. Many countries become able to enter into the global market which results to increase income generation, thereby lowering their poverty levels.
Free trade encourages a country to export the surplus of the goods that have a comparative advantage. Countries also work together, this process leads to increased mutual respect and diminishing prejudices and fears, and it becomes very difficult for the countries to fight.