Increasing concern over the regional dimensions of national economic planning since 1970s, has constituted appropriate baselines for scientific analysis of regional differences The Iranian planning views in the pre and post revolution era have been examined in this article, based on both theoretical and applied study of regional differences. Then the types and degrees of convergency and/or divergency of differences in the supply- side and demand-side are explained. The lack of scientific and conceptual frameworks in planning process in Iran, based on the results, arc the main obstacles for obtaining plan’s objectives and designing appropriate strategies in the regional domain. Our findings - from the behavioural and experimental point of view-also confirm the relevence of same story in planning constrains , and indicate the need for improved conceptual frameworks to shed light on the foregoing problems.
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