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Meta-analysis is applied to the negative relationship between airport noise exposure and residential property values. The effect size in the analysis is the percentage depreciation per decibel increase in airport noise, or the noise discount. Twenty hedonic property value studies are analysed, covering 33 estimates of the noise discount for 23 airports in Canada and the United States. About one-third of the estimates have not been previously reported in the literature or were not included in previous meta-analyses. A meta-regression analysis examines the variability in the noise discounts that might be due to country, year, sample size, model specification, mean property value, data aggregation, or accessibility to airport employment and travel opportunities. The analysis indicates that country and model specification have some effect on the measured noise discount, but the other variables have little systematic effect.
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Jon P. Nelson (2004) studied this question.
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