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Edited by K. N. Ninan

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Environmental Assessments

Scenarios, Modelling and Policy

Edited by K. N. Ninan

In this authoritative book, leading international experts examine the use of scenario analyses and modelling in environmental assessments. Including chapters with a global or regional focus as well as in-depth case studies from Africa, Asia, Australia, Europe, North and South America, contributors analyse the latest research on the applications of scenarios and models and explore the opportunities and challenges in using them for policy relevant research and action.
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Edited by K. N. Ninan

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Edited by K. N. Ninan

Open access

Edited by Daniel McFadden and Kenneth Train

Open access

William Desvousges, Kristy Mathews and Kenneth Train

Open access

Kelley Myers, Doug MacNair, Ted Tomasi and Jude Schneider

Open access

Edited by Daniel McFadden and Kenneth Train

Contingent valuation is a survey-based procedure that attempts to estimate how much households are willing to pay for specific programs that improve the environment or prevent environmental degradation. For decades, the method has been the center of debate regarding its reliability: does it really measure the value that people place on environmental changes? Bringing together leading voices in the field, this timely book tells a unified story about the interrelated features of contingent valuation and how those features affect its reliability. Through empirical analysis and review of past studies, the authors identify important deficiencies in the procedure, raising questions about the technique’s continued use.
Open access

Edited by Daniel McFadden and Kenneth Train

Open access

James Burrows, Rebecca Newman, Jerry Genser and Jeffrey Plewes

This chapter focuses on a key test of rational choice in CV studies: do estimates of WTP for environmental amenities derived from split-sample (external) tests in CV studies increase as the amount of the good (or the number of goods) increases (i.e., as scope increases), and, if so, are the WTP estimates “adequately” responsive to scope? For the 111 studies of environmental non-use and mixed use/non-use environmental amenities in our study, after fractional allocation of mixed results and appropriate weighting of studies based on common underlying data, more studies fail (54 percent of the total) than pass (46 percent). Contrary to expectations, the percentage of studies failing scope has increased over time: over the 1987–2001 period, 49 percent of the studies failed a scope test vs 59 percent for the 2001–2016 period. We also find that even the scope tests that “pass” often do not exhibit “adequate” scope sensitivity. For the 21 studies that lend themselves to appropriate quantitative analysis, nine have scope elasticities less than 0.10 and 12 have scope elasticities less than 0.2; only three have scope elasticities above 0.5. The high frequency of no or limited scope elasticities documented in this study suggests that warm glow is an important element of measured WTP for non-use environmental amenities.