This paper proposes a non-competitive CGE model with microeconomic foundations as clear as those of the Walrasian CGE model. Drawn essentially from the General Theory of the Firm, the microeconomic foundations developed make it possible: (i) to take into account the imperfections in the CGE modeling without opting for a specific theoretical framework of imperfect competition, (ii) that unemployment does not result from the choice of the modeler to force or not the existence of unemployment through the specific equations, ( iii) to better understand the behavior of economic agents
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