Stated preferences for improved air quality management in the city of Nairobi, Kenya

Abstract

Abstract:The study uses contingent valuation (CV) framework to assess individuals' preferences for improved air quality management through motorized emission reductions in the city of Nairobi, Kenya. A conventional payment card (PC) is used to draw preferences from individuals in order to estimate the mean and the median willingness to pay (WTP) for air quality improvements in the city. Through interval regression analysis, the study finds that individuals are, on average, willing to pay Kshs. 396.57 ($4.67) and a median of Kshs. 244.94 ($2.88) to improve air quality management in the city. These amounts are found to increase with male gender, individuals' income, certainty about future income and residence in an urban area. These amounts, however, decline with age, residential distance from nearby roads, and motor vehicle ownership. On the whole, the study shows significant public support towards improved air quality management in the city, which is of vital importance for effective formation and implementation of air quality management programmes.

Estimating the Young Generation’s Willingness to Pay (WTP) for PM2.5 Control in Daegu, Korea, and Beijing, China

“…Researchers have been using the CVM to estimate the welfare impact of air pollution at high frequency [25]. A number of research studies were conducted to assess people's WTP for air pollution control and air quality improvement both in developed countries and the developing world [26]. These studies not only established a benchmark of monetary values for air quality improvements in different localities, but also identified a series of analysis models and major factors which may affect the amount of WTP.…”