The population theory that is concerned with the cases of over population and shortage of food production is ______

The Malthusian population theory highlights the relationship between population and means of
subsistence. The main features of Malthusian theory about population are;
i. That population was growing at a geometric progressions such as 2,4,6,8,16,32, etc, while
food production or supply was growing at an arithmetical progression such as 1,2,3,4,5,
etc.
ii. That there is a tendency for all living things to grow beyond the food available to them
iii. That unless population increase is matched with means of subsistence, negative and
positive checks will come into force.
iv. That the checks can be war, diseases, epidemics and famine.
v. That population is essentially limited by the means of subsistence.