InnOvaciOnes de NegOciOs 2(1): 83-98, 2005 © 2005 UANL, Impreso en México (ISSN 1665-9627) Population growth and its implications (Crecimiento poblacional y sus implicaciones) Badii, M. H., J. Castillo y J. F. López UANL, Ap. 391, San Nicolas, N. L., 66450, Mexico,
[email protected]. Key words: Growth, rates, poor, population, rich Abstract. Human populations have grown at an unprecedented rate over the past three centuries. By 2001, the world population stood at 6.2 billion people. If the current trend of 1.4 % per year persists, the population will double in 51years. Most of that growth will occur in the less developed countries of Asia, Africa, and Latin America. There is a serious concern that the number of humans in the world and our impact on the environment will overload the life support systems of the earth. The crude birth rate is the number of births in a year divided by the average population. A more accurate measure of growth is the general fertility rate, which takes into account the age structure and fecundity of the population. The crude birth rate minus the crude death rate gives the rate of natural increase. When this rate reaches a level at which people are just replacing themselves, zero population growth is achieved. In the more highly developed countries of the world, growth has slowed are even reversed in recent years so that without immigration from other areas, population would be declining. The change from high birth and death rates that accompanies in industrialization is called a demographic transition.