2.6-2.9

• malthusian theory - the theory that population growth is going to exceed the ability of the earth to support it
• boserup theory - the more people there are, the more hands there are to work, rather than just more than mouths to feed
• neo malthusians - people who still believe the malthusian theory
• anti-natalist - the belief that the number of children should be limited to prevent overpopulation
• pronatalist policies - believes that the state should promote the birth rate and encourage people to have children
• total fertility rate (TFR) - number of children a woman has in her lifetime
• dependency ratio - the number of people over 65 years of age compared to the number of people under 15
• dependent population - people over 65 and under 15