| To account for differences in population size, demographers often use the concepts of crude birth rate and crude death rate. |
| The first thing to notice is that demographers have never been much good at prediction. |
| American demographers predict that upward of 90 per cent of young women will eventually marry. |
| According to demographers, this generation of 70 million born between 1978 and 1994 could represent the greatest sociological force since the baby boomers. |
| This is why demographers prefer to use fertility rates rather than the crude birth rate. |
| Research on this issue must continue, but in the meantime demographers and planners cannot afford to ignore it. |
