food demand in relation to food prices over time using data from the British National Food Survey (NFS) covering the period … energy from carbohydrate have been explored deriving nutrients elasticities with respect to variation of food prices. …

) develops a formula for estimating the elasticity of value-added with respect to the statutory tax. We show that the marginal … excess burden of the tax on suppliers is measured by this elasticity, extending Feldstein.s analysis of the elasticity of … transactions, again consistently with the theory. We provide an estimate of the elasticity of the VAT tax base in the range of 0 …