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The problem of population development has always been the key problem of restricting the development of our country. In order to increase the prediction accuracy, we analyze the exponential model, logistic model and continuous model. Also, the improved discrete population development model is provided to control the quantity and improve the quality of population. Keywords: Population Development Equation; The Correctional Population Model; Discrete Population Model The Model of Retardantdoi:10.4236/mnsms.2013.34019 fatcat:bsjajv7aajaarjhjbistbvvg2i