Making Distinction to Analytical areas on Development: Seven Analytical Areas in Answering to Why Do Countries Have Developed

“What is cause/barrier of underdeveloped countries to achieve development according to a model of modern industrial society?” is one of the most famous questions of social scientist for several decades. For answering to this question، classifying theories about development/underdevelopment is necessary. Classifying help us to understanding them. This paper tries to classify theories of development by dividing all of the analytical area in issue of development/underdevelopment. For this perspective، most theories of development are classified in seven areas: individual، family، market، civil society، political society، state، international system areas. For “Individual Change and becoming Modern” Alex Inkeles (Individual as development agent) to “contemporary underdevelopment is in large part the historical product of relations between the satellite underdeveloped and the now developed metropolitan countries” Andre Gunder Frank (international system as development/underdevelopment agent)، all of them can be classified in these seven analytical areas.