Export performance and productivity: Rationale for a macro level evidence in Economic Community of Central African States (ECCAS). Case of AFCON 2021

Since the classical theory of comparative advantage costs have been well assess with productivity’s firms level evidence considering the lack of data’s about this productivity’s firm level evidence on Sub-Saharan Africa Region the main aim of this study is to give rationality of this classical theory of comparative advantage costs even with macro level evidence on this Region. In the idea that the player’s added value is an unpreceding indicator to predict on the final result of an tournament this international trade’s comparative advantage cost can be used as an related evidence of the achievement of the final AFCON with winning country heavily desserved with players of world great team. To assess on the rationale of this macro level evidence the assessment lied on the one hand on the stochastic growth model with evidence of this scheme giving by panel data Bayesian estimates and shrinkage estimates and on the other hand on the Balassa Samuelson Effect with a evidence of them realized by the panel cointegrating technique. Globally speaking, the obtained results with a subset of countries in Africa Region the namely Economic Community of Central African States are supportive of the macro level evidence for the classical theory of comparative advantage costs and a good predictor of the final issue of an tournament as the AFCON.