Bailey and Collins (forth.) argue that Greenwood, Seshadri and Vandenbroucke (2005)'s hypothesis that the baby boom was partly due to a burst of productivity in the household sector is not supported by evidence. This conclusion is based upon regression results showing that appliance ownership is...

The welfare gain to consumers from the introduction of personal computers is estimated here. A simple model of consumer demand is formulated that uses a slightly modi ed version of standard preferences. The modi cation permits marginal utility, and hence total utility, to be nite when the...