Luxuries, necessities, and the allocation of time

We study consumption and welfare inequality by analyzing how households allocate resources - market expenditures and the value of time - to the production of activities. The share of resources allocated to an activity rises or falls with wages, classifying them into luxuries or necessities, respectively. An estimated model with non-homothetic preferences shows that the rise in consumption inequality between 2004 and 2019 was mostly due to an increase in wage dispersion, while rising prices, especially of leisure luxuries, had a significant negative effect on inequality. The distinction between luxuries and necessities amplifies the counteracting effects of wage and price on inequality.