Studies concerned with demographic methods and with methods from other disciplines that have been applied to demographic data as a whole. Includes mathematical demography and studies on methods of estimation and indirect estimation. Methodological studies and models concerned with one demographic variable, such as migration, are coded under the category concerned with that topic and cross-referenced to this heading. Studies on models used to investigate relationships between demographic variables and for the analysis of empirical data are also coded under this heading.
65:20736 Bartlett, Albert A.
Arithmetic of growth: methods of calculation, II. Population
and Environment, Vol. 20, No. 3, Jan 1999. 215-46 pp. New York, New
York. In Eng.
"This tutorial develops simple mathematical
models to show how to calculate approximate average rates of growth of
descendants using very simple assumptions.... The model is then
enlarged to describe the growth of populations and to see how the
growth of populations is related to the growth of descendants and to
fertility. The analysis is then generalized so it can be applied to
other reproductive phenomena, such as the production of Ph.D.s. The
goal is to illustrate the essential features of the simplest elements
of the population growth process by introducing modeling that is within
the reach of those who can use algebra."
Correspondence:
A. A. Bartlett, University of Colorado, Department of Physics,
Boulder, CO 80309-0390. Location: Princeton University Library
(SPR).
65:20737 Karia, S. R.; Toivonen, Juhani;
Arjas, Elja. Analysis of contraceptive failure data in
intrauterine device studies: modern competing risks approach.
Contraception, Vol. 58, No. 6, Dec 1998. 361-74 pp. New York, New York.
In Eng.
"The life table method used heretofore in case of
intrauterine device (IUD) failure data requires grouping of data into
intervals. If the termination times are recorded exactly along with the
reason of termination, grouping of data results in some loss of
information. Modern competing risks techniques are suggested here for
the exact IUD failure data.... Also, this paper focuses on the flaws of
life table estimates of net and gross rates, which have been widely
used during the past three decades in the analysis of contraceptive
failures." Data from Finland, Hungary, and Sweden are used for
illustration.
Correspondence: S. R. Karia, University of
Helsinki, Rolf Nevanlinna Institute, P.O. Box 4, 0014 Helsinki,
Finland. Location: Princeton University Library (SPR).
65:20738 Langford, Ian H.; Leyland, Alastair
H.; Rasbash, Jon; Goldstein, Harvey. Multilevel modelling
of the geographical distributions of diseases. Journal of the
Royal Statistical Society, Series C: Applied Statistics, Vol. 48, No.
2, 1999. 253-68 pp. London, England. In Eng.
"Multilevel
modelling is used on problems arising from the analysis of spatially
distributed health data. We use three applications to demonstrate the
use of multilevel modelling in this area. The first concerns small area
all-cause mortality rates from Glasgow where spatial autocorrelation
between residuals is examined. The second analysis is of prostate
cancer cases in Scottish counties where we use a range of models to
examine whether the incidence is higher in more rural areas. The third
develops a multiple-cause model in which deaths from cancer and
cardiovascular disease in Glasgow are examined simultaneously in a
spatial model. We discuss some of the issues surrounding the use of
complex spatial models and the potential for future
developments."
Correspondence: I. H. Langford,
University of East Anglia, Centre for Social and Economic Research on
the Global Environment, School of Environmental Sciences, Norwich NR4
7TJ, England. E-mail: i.langford@uea.ac.uk. Location:
Princeton University Library (PR).
65:20739 Martcheva, Maia; Milner, Fabio
A. A two-sex age-structured population model: well
posedness. Mathematical Population Studies, Vol. 7, No. 2, 1999.
111-29 pp. Amsterdam, Netherlands. In Eng. with sum. in Fre.
"In this paper we consider a two-sex population model proposed
by Hoppenstead. We do not assume any special form of the mating
function. We address the problem of existence and uniqueness of
continuous and classical solutions. We give sufficient conditions for
continuous solutions to exist globally and we show that they have in
fact a directional derivative in the direction of the characteristic
lines and satisfy the equations of the model with the directional
derivative replacing the partial derivatives. The existence of
classical solutions is established with mild assumptions on the vital
rates."
Correspondence: F. A. Milner, Purdue
University, Department of Mathematics, West Lafayette, IN 47907-1395.
E-mail: MILNER@Math.purdue.edu. Location: Princeton University
Library (SPR).
65:20740 Obuchi, Hiroshi; Takahashi,
Shigesato; Kaneko, Ryuichi; Kato, Hisakazu; Wada, Kohei; Iwasawa, Miho;
Harada, Rie. Toward an integration of various models of
marriage formation and fertility. Jinko Mondai Kenkyu/Journal of
Population Problems, Vol. 54, No. 1, 1998. 88-119 pp. Tokyo, Japan. In
Jpn.
This is a theoretical study on the integration of models
concerned with marriage and fertility.
Location: Princeton
University Library (SPR).
65:20741 Swanson, David A.; Hough, George C.;
Rodriguez, Joseph A.; Clemans, Chuck. K-12 enrollment
forecasting: merging methods and judgment. ERS Spectrum, Vol. 16,
No. 4, Fall 1998. 24-31 pp. Arlington, Virginia. In Eng.
"This
article describes an enrollment forecasting process in which technical
experts and local community stakeholders [in Oregon] worked together to
produce data that were cost-efficient and yet accurate enough to serve
as the basis for sound decisions. The large school district that
employed this process gained valuable insights to guide its attendance
zone and facilities planning decisions, and also created a group of key
communicators to ensure community understanding and
support."
Correspondence: D. A. Swanson, Science
Applications International Corporation, 3245 Palm Center Drive, Las
Vegas, NV 89103. Location: Princeton University Library (SPR).
65:20742 Wardwell, John M.
Community mobility and public school enrollments. Research in
Rural Sociology and Development, Vol. 7, 1998. 131-54 pp. Stamford,
Connecticut/London, England. In Eng.
"This paper has two
related purposes. The first is to present an argument for the
systematic use of public school enrollments data to study family
mobility at the community level. The second is to demonstrate the
utility of these data for mobility research. This is accomplished with
case studies, chosen for distinctive patterns of movement which have
produced observed changes in enrollments data, and which correspond to
migration patterns of interest to research. The case studies are
illustrative of the potential for the use of these data to illuminate
patterns of movement that might otherwise go largely
undetected."
Correspondence: J. M. Wardwell,
Washington State University, Department of Rural Sociology, Pullman, WA
99164. Location: Princeton University Library (SPR).
