The Dictionary Of Human Geography - Plot & Excerpts
As ?what if? scenarios, projections should be distinguished from esti mates (which aim to provide the most accurate picture of current populations) and forecasts (which aim to statistically predict the most probable scenario based on a broad range of information). The key (direct) mathematical methods for making projections include the extrapolation of demographic trends, the use of the balancing equation (see demography) and, notably, the cohort component method, which makes specific assumptions about the fertiLity, mortaLity and migration (NEW PARAGRAPH) experiences of every five year cohort in a population as it ages. The increased applica tion of population projections in business and planning has helped fuel a virtuous circle of methodological innovation, which includes developments in sub national projections, small area projections, multi region models and ethnic minority projections (Wilson and Rees, 2005). ajB (NEW PARAGRAPH) Suggested reading (NEW PARAGRAPH) Rowland (2003, ch.
What do You think about The Dictionary Of Human Geography?
