Implicit Prices of Wetland Easements in Areas of Production Agriculture
通过回归分析北达科他州农地销售价格，发现永久湿地地役权使每英亩价格下降321美元，扣除湿地本身的影响后，地役权本身的隐含价格为160美元/英亩，低于历史补偿水平。
<i>Impacts of Fish and Wildlife Service wetland easements on agricultural land values in North Dakota were estimated by regressing sale prices on physical and institutional characteristics of sold parcels. While easements on temporary wet-lands did not influence prices, each additional acre of permanent wetland under easement decreased average prices by $321 (–79%). Because non-eased permanent wetlands were shown to reduce land prices by $161/acre, we can estimate the implicit price of a wetland easement per se to be $160/ acre—6% below historical easement payment levels in the study area.</i>