Abstract
HALIM. ABDUL, University of the Philippines at Los Baños,
January, 1973 The Bconomic Contribution of Schooling and Extension to Rice Production in the Province of Laguna, Republic of the
Philippines. Major Professors: Dr. Obdulia F. Sison and Dr.
Robert E. Evenson
This study estimated the marginal contribution of schooling
and extension participation of farm family members in increasing
rice production and net farm earnings. Longitudinal data from the
University Extension Center, University of the Philippines at
Los Baños, for three different years 1963, 1968 and 1973 were
analyzed.
Both schooling and extension contributed significantly to
increased rice production and net farm earnings. The intensive
extension program was effective in terms of the "worker effect, "
while formal schooling developed the "allocative effect" of the client
system. In increasing the "worker effect, "extension substituted
for schooling in less developed barrios, while in developed barrios
extension and schooling were found to complement. In the case of
the "allocative effect" schooling and extension were found to complement each other both in developed and less developed barrios. The marginal contribution of schooling in increasing net farma
earnings was higher (111.78) than that of increasing the value of
rice production (. 37.56). But the marginal contribution of extension was higher in increasing the value of rice production (28. 12)
than that of increasing the net farm earnings (4.12). Furthermore,
the marginal return to extension in a 'general approach" system
was higher (7.65) than that of a ''team approach" (2.96). The
estimated marginal value product of a group extension contact was
higher (F 13.46) than that of an individual extension contact (F6.07).
The effects of an extension contact depreciated at a rate of 50 percent
during the period 1963 to 1968.
Age of the farm operator was found significant in increasing
the farm income up to age 49, after which the contribution of age
declined. The income peak of the elementary school graduates farm
operators came at later age (49-53) than that of the unschooled
farm operators (42-48). The internal rate of return to investment
in elementary schooling was found to be 8.58 percent, while that in
extension was 97 percent.