Backwrd population projection by a generalized inverse |
| |
Authors: | T N Greville N Keyfitz |
| |
Institution: | National Center for Health Statistics, Rockville, Maryland 20852 USA;Department of Sociology, Harvard University, William James Hall, Cambridge, Massachusetts 02138 USA |
| |
Abstract: | The Leslie population projection matrix may be used to project forward in time the age distribution or age-sex distribution of a population. As it is a singular matrix, it does not have an inverse, and so it is not clear that there is a corresponding procedure for backward projection. In terms of the eigenvalues and eigenvectors of the Leslie matrix, certain generalized inverses are constructed that can sometimes be used advantageously for backward projection. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|