background of the concept of ‘development’. It America is a prismatic society and economically backward Egypt a diffracted society, Daya Krishna feels that all developing countries in the world would like to continue to be prismatic society. Riggs considered differentiation and integration as two important ingredients of development. But it is a difficult task to identify the desirable level of differentiation and integration required for development Riggs’ preference for societies with low but equitable level of differentiation and integration to those with high level of differentiation and low level of integration, according to Daya Krishna, stands as an obstacle to development. Lack of international perspective in his approach to development is another limitation of Riggs’ concept. In a competitive woeld, the higher-level prismatic society may exploit the lower-level diffracted society. In Daya Krishna’s view, Riggs failed to recognise the role of outside or external forces in the