Two basic principles are involved, the idea of exponential growth and its ultimate control ... The exponential equation is a useful model of simple populations, at least for relatively short ...

In the Leslie model ... made simple. Population and Development Review, 28, 121-41. Keyfitz, N. (1968). Introduction to the mathematics of population. Reading MA: Addison-Wesley. Keyfitz, N. (1971).

The U.S. Census Bureau makes projections of the U.S. population based on various immigration scenarios. Currently, it ...

India, along with eight other countries, will make up over half of the estimated population growth between now and 2050. The nine countries expected to show the biggest increase are India ...