Mathematical simulation of impact of birth control policies on Indian population system

A feedback control computer simulation model of the population system of India is synthesized by using system dynamics methodology. The governing dynamic equations are solved using continuous system modeling program (CSMP) on IBM 370/155 computer. The model, for different birth control policies, reproduces the past history of the system accurately. It projects (up to the year 2026) the future growth of population; birth and death rates; age structure; and total couples to be covered for (1) different intensities of birth control, (2) increase 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 recommendations 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.