... In contrast, respondents in the off-site sample placed the attribute other uses of cascades as the highest marginal willingness to pay with an estimated value of LKR 17,995 per family per season, followed by biodiversity with LKR 8921 per season 11,721,881 22,344,282 35,553,062 5,384,937 75,004,161 Labour contribution 774,208 1,548,416 2,064,555 774,208 5,161,387 DAD contribution 1,172,188 2,234,428 3,555,306 538,494 7,500,416 Total cost (70% restoration) 13,668,277 26,127,126 41,172,922 6,697,639 87,665,964 Full restoration cost 19,526,109 37,324,466 58,818,461 9,568,055 125,237 Source: Vidanage (2019) per family, paddy with LKR 8234 per season per family, and ecology with LKR 4000 per season per family. The order and absolute values of marginal willingness to pay for cascade-related attributes differ between the two samples. ...