Abstract:
In the current situation, most of the existing social security systems and models, which have been established in different countries, are facing a crisis. This crisis has created important questions for them; The basic and important question facing the existing models of social security is how to have a sustainable social security system and whether such arrangements and services are basically necessary or not and on what basis is it based? Where and how are its resources provided? What scope and coverage should it have? Should it be organized by the government or privately? Trying to get out of this crisis has created new motivations and ideas for the evolution of these systems, models and concepts and supporting theories. Achieving this goal requires a detailed and comprehensive analysis of welfare and social security patterns.Hence, it is necessary to study the social security comparative pattern by studying welfare and social security patterns at three macro, medium and micro levels with the comparative study method and to extract the representative features and characteristics of each of these three levels