A Study on the Causes of Corruption Control at the Macro Level Based on Fuzzy Logic

Corruption as one of the realities of today's society has had unprecedented growth in the administrative, political and economic systems of the world and according to the International Transparency Institute, no region or country in the world is immune to corruption. In this article, with theoretical speculations, we are looking for a comparative study of the necessary and sufficient conditions for the necessary outcome: the control of macroeconomic corruption. Based on the theoretical framework, we have identified three dimensions or three constraints for corruption control: the rule of law, political development, and economic development. The methodology of this research is qualitative and comparative. The data of 14 countries have been analyzed using a fuzzy approach and include positive and negative cases. Research findings suggest that the rule of law, political development, and economic development are each a necessary condition for the outcome of corruption control. In causal and hybrid causalities, only one causal route was necessary based on adequacy and the index of compatibility and cover index. In this causal direction, the rule of law, political development, and economic development combined provided the necessary causality to produce the desired result. Compatibility index of the remaining rout is 0.97 and it covers 84% of the changes in the variable which is of acceptable theoretical and empirical importance. Therefore, generally, these causes have significant explanatory power in the analysis of the countries under investigation.