An Economic Analysis of Giant Freshwater Prawn Pond Culture in Thailand
Productivity of Giant Freshwater Prawn (GFWP) pond culture in Thailand is considered to be relatively low compared to its potential productivity which leads to high per uni t cost of production. One measure by which productivity and profit can be raised is to make an adjustment of resource use i...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
1987
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/8007/1/FEP_1987_2_.pdf |
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| Summary: | Productivity of Giant Freshwater Prawn (GFWP) pond culture
in Thailand is considered to be relatively low compared to its
potential productivity which leads to high per uni t cost of
production. One measure by which productivity and profit can be
raised is to make an adjustment of resource use in cases where
the resources are used inefficiently. If the resources use are
price efficient, another way to raise their productivity is to increase their technical efficiency. This study explores the
issue of relative economic efficiency (technical coupled with
price efficiency) among small, medium, and large farms; between
farms with and without juveniles nursery practices (JNP and non-JNP)i and between farms facing diseases and/or water pollution
(DWP) and farms facing none (non-DWP) within the framework of normalized restricted profit function. This was accomplished by
statistically testing various hypotheses from the joint
estimation of the normalized restricted profit function and four
factor share equations. Further, production elasticities, output
supply and input demands elasticities were subsequently derived
from these estimators. The normalized restricted profit was
specified as a function of four normalized prices of variable
inputs (juveniles, feeds, labour and fuel), two quantities of
fixed inputs (farm asset and pond area), experience and four
dummy variables to categorize the three different farm sizes, two
juveniles practices (JNP and non-JNP farms) and two natural
conditions (DWP and non-DWP farms).
The results of this study indicate that the variable inputs
use in GFWP pond culture was price efficient and constant returns
to scale existed in this type of farming. Medium farms were
found to attain the highest economic efficiency followed by small
and large farms while JNP and non-DWP farms obtained higher
economic efficiency than those non-JNP and DWP farms. The
existence of differences in economic efficiency among groups of
farms was due to their differences in technical efficiency.
The productivity and profit of GFWP pond culture can be
increased through improving the technical efficiency of this
farming. It i s recommended that operating GFWP pond culture
within medium scale farming with juveniles nursery together with proper water management, disease prevention and treatment should be encouraged. |
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