Traditional consumer theory assumes that welfare is derived at the point where goods are purchased. More recent theories however argue that what matters is dependent on what happens after goods are purchased. Such information requires surveys that are specifically designed for the purpose....

According to traditional welfare economics welfare occurs at the point where a good is purchased and some amount of utility is assumed to derive therefrom. According to Sen and others however one needs to look in addition to what use is made of the good after purchase. This paper throws new...