A number of studies have evaluated the social welfare impact of price and income changes using equivalent incomes that are computed at some reference price vector, and an aggregator with these equivalent incomes as arguments in place of a social welfare function. This paper investigates the...

In a market in which firms have market power, the impact of a change in wages on labour demand is not easily determined. Indeed, if after a decrease in wages one firm chooses to increase labour demand for producing more, this reduces the output price; this in turn may lead other firms to decrease...

Several recent papers have shown the relevance of collective models for the empirical investigation of household labor supply and consumption. Yet the estimation of collective models in the presence of non-linear budget sets and participation decisions remains a daunting task. This paper...