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A case study of a river system is presented in which development is to be planned according to national and regional objectives. A linear screening model for finding the best set of development alternatives from a national objective point of view is introduced and a brief discussion of methods for handling more than one objective in such models is presented. An analysis of the trade offs between the two objectives is demonstrated by using a constraint method. The transformation curve between net national income benefits from power and irrigation and regional equity as measured by deviation from an equal regional water distribution is shown.
Cohon et al. (Wed,) studied this question.