... deodorant and perfume be subs idised?13.8. CONCLUSION: ECONOMIC PRESCRIPTIONS 467 = 1:025= 1:05= 1:075Meat, …sh, dairy products and fats 11.1 27.8 63 .2Fruits and vegetables 8.2 18 .6 ... Rn and R is a set of vectors in Rmthen f : D 7! Ris an a¢ ne function or transformation if and only if it can be written in theformf(x) = Ax + b; (A.3)where A is an m n matrix2 6 6 6 4a11a12::: ... 4, 180–199.Stone, J. R. N. (1954). Linear expenditure systems and demand analysis: .Economic Journal 64 , 511–527.Sugden, R. (19 86) . New developments in the theory of choice under uncertainty.Bulletin...