Table 2.

Marginal Values and Price Elasticities of Demand for Water Used to Build Demand Curves for Each Water Diverter in the Case Study

Sector	Marginal Value in £/m3 (Elasticity of Demand)	Sources
Water supply	1.3 (−0.14)	Value derived using Gibbons' Gross Willingness to Pay formula, using £1.45/m3 (Anglian Water charges to households for metered water [Anglian Water, 2012]) [Gibbons, 1986; Moran and Dann, 2008], elasticity of demand—UKWIR [2003]
Agriculture	Sep to Mar 0.017	Values derived from Knox et al. [2000], using main-crop potato value and distribution of benefits across growing season. Low winter value—based on Morris et al. [2003]. Elasticity of demand—Scheierling et al. [2006]
	Apr to May 0.6
	Jun—0.53
	Jul—0.28
	Aug—0.1 (−0.16)
Industry	1.86 (−0.16)	Value derived from average value for golf industry in Spain [Diaz et al., 2007; Scheierling et al., 2006]
Energy	13 (N/A)	Value derived using residual imputation method based on wholesale price of energy, water requirements for power generation using CCGT technology and costs of energy production. The value compares well with other estimates [ACILTasman, 2007; Maulbetsch and DiFilippo, 2006]