CONCLUSION

Modelling in population studies has helped in answering questions which could not be answered due to lack of data, or even lack of possibility of observations and experimentation. Yet, the models have certain limitations. The prediction based on models depend on various factors including state of art understanding in the field, nature of models employed, and accuracy of data. Modelling is a growing field of research and more and more advanced models have been developed in different branches of population to take care of advanced understanding of the subject, and to benefit from richer data available from diverse sources. Modelling will never sociology particularly because they cannot help in understanding the subjective worldview of people.