FRIDMAN, SAMUEL; PHD
CORNELL UNIVERSITY, 1984
SOCIOLOGY, DEMOGRAPHY (0938)
Evidence of geographic patterns in fertility transition, although scattered,
abounds in the literature. The
overall picture suggests a process of spatial diffusion in the acceptance of
contraception. A framework is
developed in which individual and aggregate patterns are rendered comparable.
It is hypothesized that
the spatial spread of contraception is related to normative prescriptions which,
in turn, differ and change
predictably across space. Unmeasurable patterns of normative change can thus
be better understood by
analyzing a quantifiable phenomenon: the spatial diffusion of contraception.
A longitudinal model is
specified to test causal processes along the reproductive lifetime of individuals.
The timing of a fertility
related event, e.g., marriage, is seen as crucial in determining the timing
of subsequent events such as
the adoption of contraception. The main dependent variable is the delay of contraceptive
adoption given
knowledge. Distance to innovation centers is hypothesized to relate positively
to this delay and
negatively to the probabilities of adoption. To the extent that aggregate fertility
reflects contraceptive
behavior, distance should relate positively to aggregate fertility. Costa Rica
is used as a case study. Data
in micro level analyses were obtained from the Costa Rican round of the World
Fertility Survey and from a
reinterview of married women included in the WFS survey. Aggregate data for
60 Costa Rican cantons
were derived from vital statistics and from 1963 and 1973 census results. Empirically,
individual and
aggregate location effects support the main hypothesis. Spatial effects also
decline with time,
suggesting that normative opposition to contraception loses ground, literally,
as time advances. Spatial
effects are found in marriage and education patterns too. Their inclusion as
controls does not affect our
main finding: spatial patterns of fertility and birth control represent another
dimension in the process of
diffusion of new norms. Results from this study suggest that spatial processes
of normative diffusion, at
least those that occur during fertility declines, may not be eliminated altogether.
They also suggest that
behavioral changes may be accelerated by earlier awareness of the innovative
ideas linked to an
emerging norm--in this case, to deliberate birth control.
Social
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