Raeside, R. Modelling and Forecasting Human Populations using Sigmoid Models. (Thesis). Edinburgh Napier University. Retrieved from http://researchrepository.napier.ac.uk/Output/1053286
Early this century "S-shaped" curves, sigmoids, gained
populari ty among demographers. However, by 1940, the approach
had "fallen out of favour", being criticised for giving p...