An Examination of Methodologies for Assessing the Value of Visibility

High consistency in visitor willingness to pay for improved visibility was observed, suggesting robust methodologies for assessing the value of visual air quality. The study compared two approaches—willingness to pay (WTP) and allocation of time—to evaluate how visitors perceive and prioritize scenic clarity, particularly in Mesa Verde National Park. Conducted by the National Park Service and EPA in 1980, the research used structured survey questions to quantify visitor preferences for cleaner air, revealing strong correlations in bidding behavior. This insight underscores the potential for economic valuation tools to guide conservation efforts in protected areas.

MacFarland, K. K., Malm, W., & Molenar, J. (2019). An Examination of Methodologies for Assessing the Value of Visibility. Managing Air Quality and Scenic Resources at National Parks and Wilderness Areas, 151–172. https://doi.org/10.4324/9780429050084-18