Willingness to pay for air quality improvement in Ho Chi Minh City, Vietnam

Author(s):  
Han T. N. Le

This research aimed to estimate people’s willingness topay (WTP) to improve air quality in Ho Chi Minh City (HCMC), Vietnam. Contingent value method (CVM), the single bounded dichotomous choice question format, was employed. Five levels of bid were used, including 10,000; 20,000; 30,000; 40,000; 50,000 VND. A survey was conducted with 600 people, distributed in 8 districts. The results showed that people had limited perception on specific terms, but they understood the phenomenon and the consequence of air pollution. The mean willingness to pay (MWTP) for air quality improvement was 19,147.06 VND/person per month (0.83 USD/person per month) (with protesters) and28,157.01 VND/person per month (1.22 USD/person per month) (without protesters). The total budget that would be used for air protection in HCMC was 86,927,652,400VND/month (3,779,463.15 USD/month) (with protesters) and 127,832,825,400 VND/month (5,557,557.62 USD/month)(without protesters). The income, education level and bid level were the factors affecting their WTP

2017 ◽  
Vol 19 (04) ◽  
pp. 1750018
Author(s):  
Mohamad Hadian ◽  
Mahya Razimoghadam ◽  
Ali Abutorabi

Air pollution in Tehran, the capital city of Iran, has led to poor air quality, with consequences for the health of residents. This study uses a contingent valuation method to estimate the willingness to pay of Tehran’s residents for air quality improvement. Open-ended and stochastic payment card approaches were used to determine the willingness to pay of the sample. The mean individual willingness to pay for a specified air quality improvement was approximately US $6.40 per month, and the variance of the willingness to pay was approximately U.S. $4, as estimated using the SPC approach. Open-ended questions revealed that the mean individual willingness to pay was approximately U.S. $4 per month. Significant positive effects of income, use of public transportation, marriage, job and health status on the mean willingness to pay were observed. Although most respondents believed that air quality improvement is the government’s responsibility, they are willing to bear the cost as a supplement to achieve better air quality.


2016 ◽  
Vol 21 (5) ◽  
pp. 649-668 ◽  
Author(s):  
Hilary Ndambiri ◽  
Roy Brouwer ◽  
Eric Mungatana

AbstractThe effect of preference uncertainty on estimated willingness to pay (WTP) is examined using identical payment cards and alternative uncertainty elicitation procedures in three split samples, focusing on air quality improvement in Nairobi. The effect of the stochastic payment card (SPC) and polychotomous payment card (PPC) are compared with a conventional payment card (PC). Substantial financial support is found for improved air quality in Nairobi, with approximately 85 per cent of the whole sample stating a positive WTP. The way WTP values are elicited, with and without ability to express preference uncertainty, has significant effect on WTP welfare estimate. Allowing respondents to express experienced uncertainty when stating WTP value yields more conservative but less accurate WTP values for inclusion in policy analysis. The PPC seems to hold more promise since it is easier to understand and imposes less cognitive burden on survey participants than the SPC in a developing country context.


2021 ◽  
Vol 13 (21) ◽  
pp. 12313
Author(s):  
Waranan Tantiwat ◽  
Christopher Gan ◽  
Wei Yang

Thailand has experienced severe air-quality problems for the past 10 years. Complicating this situation, the Thai government allocates an insufficient budget for the management of air pollution. Using the contingent valuation method, this paper estimates the willingness to pay for air-quality improvement in Thailand to reveal the benefits that people will gain if air-quality improves. The results show that the total benefits from air-quality improvement would be 18.8 billion baht in 2020. The Thai government can use these findings as a guideline to redistribute its budget to address air pollution more effectively.


Author(s):  
Dede Long ◽  
Grant H. West ◽  
Rodolfo M. Nayga

Abstract The agriculture and food sectors contribute significantly to greenhouse gas emissions. About 15 percent of food-related carbon emissions are channeled through restaurants. Using a contingent valuation (CV) method with double-bounded dichotomous choice (DBDC) questions, this article investigates U.S. consumers’ willingness to pay (WTP) for an optional restaurant surcharge in support of carbon emission reduction programs. The mean estimated WTP for a surcharge is 6.05 percent of an average restaurant check, while the median WTP is 3.64 percent. Our results show that individuals have a higher WTP when the surcharge is automatically added to restaurant checks. We also find that an information nudge—a short climate change script—significantly increases WTP. Additionally, our results demonstrate that there is heterogeneity in treatment effects across consumers’ age, environmental awareness, and economic views. Our findings suggest that a surcharge program could transfer a meaningful amount of the agricultural carbon reduction burden to consumers that farmers currently shoulder.


2017 ◽  
Vol 17 (1) ◽  
pp. 31-46 ◽  
Author(s):  
Wen Xu ◽  
Wei Song ◽  
Yangyang Zhang ◽  
Xuejun Liu ◽  
Lin Zhang ◽  
...  

Abstract. The implementation of strict emission control measures in Beijing and surrounding regions during the 2015 China Victory Day Parade provided a valuable opportunity to investigate related air quality improvements in a megacity. We measured NH3, NO2 and PM2.5 at multiple sites in and outside Beijing and summarized concentrations of PM2.5, PM10, NO2, SO2 and CO in 291 cities across China from a national urban air quality monitoring network between August and September 2015. Consistently significant reductions of 12–35 % for NH3 and 33–59 % for NO2 in different areas of Beijing during the emission control period (referred to as the Parade Blue period) were observed compared with measurements in the pre- and post-Parade Blue periods without emission controls. Average NH3 and NO2 concentrations at sites near traffic were strongly correlated and showed positive and significant responses to traffic reduction measures, suggesting that traffic is an important source of both NH3 and NOx in urban Beijing. Daily concentrations of PM2.5 and secondary inorganic aerosol (sulfate, ammonium and nitrate) at the urban and rural sites both decreased during the Parade Blue period. During (after) the emission control period, concentrations of PM2.5, PM10, NO2, SO2 and CO from the national city-monitoring network showed the largest decrease (increase) of 34–72 % (50–214 %) in Beijing, a smaller decrease (a moderate increase) of 1–32 % (16–44 %) in emission control regions outside Beijing and an increase (decrease) of 6–16 % (−2–7 %) in non-emission-control regions of China. Integrated analysis of modelling and monitoring results demonstrated that emission control measures made a major contribution to air quality improvement in Beijing compared with a minor contribution from favourable meteorological conditions during the Parade Blue period. These results show that controls of secondary aerosol precursors (NH3, SO2 and NOx) locally and regionally are key to curbing air pollution in Beijing and probably in other mega cities worldwide.


2019 ◽  
Vol 10 (2) ◽  
pp. 580-586 ◽  
Author(s):  
Jingyu Tian ◽  
Tianqi Cai ◽  
Jing Shang ◽  
James J. Schauer ◽  
Shujian Yang ◽  
...  

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