Empirical Valuation Of Road And
Roadside Environment Considering
Heterogeneous Preferences
Author(s)
S. Mizokami & M. Parumog
Abstract
Stated choice experiments eliciting willingness-to-pay (WTP) for environmental
goods and services provide the means to assign monetary estimates to the social
and environmental costs of motor-vehicle use such as air pollution, noise and
congestion. However, fixed parameter models indicating homogeneous WTP
estimate dominates current applications. This paper investigates the need to
account for heterogeneity in the WTP estimates of stated preference models
involving an internet-based survey on the valuation of road and roadside
environment in Metro Manila. Initially, factors affecting heterogeneity in WTP
are investigated using contingent valuation (CV) data. Then, random parameter
choice models are estimated to describe the effects of preference heterogeneity in
attribute-based valuation data. Finally, the implications of value estimates on
environmental policies for Metro Manila are presented.
Keywords: environmental valuation, heterogeneity, random coefficient model.
1 Introduction
Mobility improvements still play a vital role in the economic growth of many
developing nations. However, high motorization rates as a consequence of
increased mobility is triggering unaccounted environmental costs, such as air
pollution, noise, congestion, accidents, and urban decay. In developing countries,
concentration of total suspended particulate, recently linked with respiratory and
cardiac diseases, is found to be many times higher than the World Health
Keywords
environmental valuation, heterogeneity, random coefficient model.
Related Book
Other papers in this volume
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