A feedback control computer simulation model of the popula tion system of India is synthesized by using system dynamics methodology. The governing dynamic equations are solved us ing continuous system modelling program (CSMP) on IBM 370/155 computer. The model, for different birth control policies, reproduces the past history of the sytem accurately. It projects (up to the year 2026) the future growth of popula tion ; birth and death rates; age structure; and total couples to be covered for (1) different intensities of birth control, (2) in crease in marriage age, and (3) better distribution of income policies.
The model could be used as a tool to evaluate alternate policies for long-term population planning and to make recommenda tions of suitable policies to reduce and stabilize the population within minimum time. This model provides national policy makers with a scientific basis to evaluate the impact of their policies and thus to select the optimal one.
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