Background of the study
The global economy is in a state of transition from a set of strong national economies to a set of interlinked trading groups. This transition has accelerated over the past few years with the collapse of communism and the blending of the world trading nations into a single market (Gillespie, Jeannet and Hennessey ,( 2004) in Adelowokan and Maku(2013)). One of the most important paths driving global development into the twenty-first century is the advanced economic integration and investment.
Never before have so many economies been open to global trade and finance flow than now, after the liberalization of the former communist economies (Adelowokan and Maku 2013). The relationship between trade and productivity has not been established theoretically even though some researchers have indeed found some, if not complete, support for the view that increasing openness has a positive impact on productivity (Osei,Cephas, and Shaik2012)
The role of international trade is very crucial to the development of any economy and it is assumed that trade liberalization works as an engine for the growth of the economy.
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