what is the malthusian growth model 
the malthusian growth model is a mathematical equation for population growth it holds that the rate of growth is proportionate to the current population this is functionally equivalent to exponential growth where the size of the population doubles at predictable intervals the bottom linethomas malthus was an 18th century british economist best known for his theory that human populations tend to outgrow their agricultural production capabilities resulting in famines and other disasters these theories have largely been discredited by innovations in agricultural technology but they remain influential in the field of evolutionary biology 