The model of exponential growth is based on that a stock y (eg a population) is all the more increased the greater the inventory itself. That in the model with the magnitude of the population continues to increase the growth rate.
Limitations of the model
The model does not account limiting factors such as only a finite available resources. A model that takes this into account leads to the model of logistic growth.
Half-life or doubling time T
The half-life or doubling time T is the period in which the stock is doubled or halved.
Growth of populations
Absorption of light