You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Covariances, Roots, and the Dynamics of Age-Specific Growth
Robert Schoen and Young J. Kim
Vol. 58, No. 1 (Spring, 1992), pp. 4-17
Published by: Office of Population Research
Stable URL: http://www.jstor.org/stable/3643798
Page Count: 15
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Regularities in age-specific growth rates are explored over age and time, with regard to age-aggregated summary measures and with respect to the spectral decomposition of a population. Using a new approach to the differentiation of population functions, changes in many crude rates are shown to reflect the covariance between age patterns of demographic behavior and age-specific growth. For example, the marginal change in the crude birth rate is simply the covariance between the age-specific schedules of fertility and growth, indicating that the birth rate increases to the extent that ages with higher fertility experience greater growth. Age-specific growth is an important demographic variable because of its ability to relate observed changes to mathematical models of population dynamics.
Population Index © 1992 Office of Population Research