The purpose of this scientific article was to compare the Composite Competitiveness Indicator (CI) in the Electoral Systems of Venezuela, Mexico and Chile. The research was documentary, which implied that the study data were obtained from bibliographic documents. The method used was the comparative one. As a result, the impact of political behavior, together with political conditions, the role of political parties, institutions, etc., in the change of the electoral system of each country is demonstrated. In conclusion, it was evidenced how the dynamics of the political and social contexts over the years determine the electoral system, varying from competitive to non-competitive, as was the case of the compared countries.