We develop a method for estimation of price reactions using unit value data which exploits the implicit links between quantity and unit value choices. This allows us to combine appealing Engel curve specifications with a model of unit value determination in a way which is consistent with demand...

Several recent papers have concluded that precautionary saving motives are needed to reconcile data on lifetime patterns of consumption and income with a standard optimising model. In this paper we contest that we necessarily need a precautionary motive and we show that if we take consumption to...