The Economic Incidence of Wildfire Suppression in the United States
研究美国公共野火扑救支出如何补贴高风险地区的住房开发,发现补贴现值可超过房屋价值的20%,且随火灾风险增加而上升,随开发密度增加而急剧下降。
This study measures the degree to which public expenditures on wild-fire protection subsidize development in harm’s way. We use administrative data on firefighting expenditures to measure the causal effect of nearby homes on the amount spent to extinguish wildfires. We use these estimates in an actuarial calculation yielding geographically differentiated expected implicit subsidies for homes across the western United States. The expected net present value of this subsidy can exceed 20 percent of home value, increases with fire hazard, and decreases surprisingly steeply with development density. We discuss potential behavioral responses by individuals and local governments using a simple economic model.