Planning and statistical techniques of projection
Author(s)/Corporate Author (s)United Nations. Economic and Social Council;
United Nations. Economic Commission for Africa;
MetadataShow full item record
The demographic models are basically foreoastinp: models waioh, apart from some exceptional cases, do not generally show any particular policies .(exceptions being the institution of family allowances, publicity on oontraoeption, propaganda in favour of abortion etc.).They can be safely established for sufficiently long periods,provided there are no violent exogenous disturbances (e.g.' wars or revolutions), which are in any case an obstacle to the very idea of long-term planning.