Demographics and Monetary Policy Shocks

We decompose the response of aggregate consumption to monetary policy shocks into contributions by households at different stages of the life cycle. This decomposition finds that older households have a higher consumption response than younger households. Amongst older households, the consumption response is also increasing in income. This, along with data on age-related net wealth, presents evidence for a wealth effect playing a role in driving the response patterns. This mechanism is studied further in a partial-equilibrium life-cycle model of consumption, saving, and labor-supply decisions. The model qualitatively explains the empirical patterns. Understanding the heterogeneity in consumption responses across age groups is important for understanding the transmission of monetary policy, especially as the U.S. population grows older.