Analysis of Households’ Preferences For improved Solid Waste Management in Adama Town: Application of Choice Modeling
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Date
2010-11
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Addis Ababa University
Abstract
In recent years, the generation of solid waste is increasing in Adama town due to
rapid urbanization and population growth. Currently, out of the total waste
generated in the town about 50-60 % is properly collected and disposed. The
remaining amount of the waste is disposed on open spaces, streets and drainage
channels along roadsides of the town. This uncollected solid waste in many places
of the town may have serious adverse effect on public health and environmental
quality. Moreover, the formal dumpsite, located some 8 km away from the center of
the town, does not appear to have proper measures to control runoffs from rain
fall. Thus, conducting a study on the demand for improved solid waste collection
and disposal services is essential. The principal objective of this study is to analyze
households’ preferences for improved solid waste management in Adama town.
Different solid waste management options are defined by the service attributes of
frequency of waste collection from households, separation of waste at source,
pollution control measures at the dumpsite and monthly service charge. The study
employed the choice modeling technique, which is a stated preference method for
the valuation of non-marketed environmental goods and services. The survey was
administered on a random sample of 188 households in the town. The data was
analyzed using Multinomial Logit and Random Parameter Logit models. The
results of the study revealed that improvement in the levels of all the non-monetary
attributes of the service increase the utility of respondents. In addition, households
with higher monthly total income, larger family size, as well as respondents with
higher levels of education favor the improved plans of solid waste management
more frequently. Furthermore, households have a positive willingness to pay for
improvement in the level of each non-monetary attribute. In conclusion, households
in Adama town are willing to pay for improved solid waste collection and disposal
services. The implication is that any policy directed towards the provision of
effective solid waste management in the town should incorporate demand side
information.
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Keywords
Preferences For Mproved Solid Waste Management