ECON 157 Lecture Notes - Lecture 7: Birth Rate, Investment Goods, Diminishing Returns
Document Summary
Population increases in developing countries depend almost entirely on the difference between their crude birth rates (known also simply as birth rates) and death rates. Crude birth rate: number of children born alive each year per 1,000 people (aka birth rate) Death rate: number of deaths each year per 1,000 people. Natural increase in population: the difference between the birth rate and the death rate of a given population. Hidden momentum of population growth describes a phenomenon where population continues to grow even after a fall in birth rates. Large existing populations of younger people expands (cid:272)ou(cid:374)try"s (cid:271)ase of pote(cid:374)tial pare(cid:374)ts. O(cid:448)er 75 per(cid:272)e(cid:374)t of the (cid:449)orld"s populatio(cid:374) li(cid:448)es i(cid:374) developing countries. Children under 15 constitute over 30% of total population of developing countries but just 17% of developed countries. Transition process by which the fertility rate of a country eventually declines to low and stable levels. Stage i: high birthrates and death rates.
