Population Structure and Consumption Growth: Evidence from National Transfer Accounts

Abstract

We assess the impact of population structure on economic growth. Following recent research, we focus on the generational turnover as a key driver of consumption growth. We characterize the impact of the average birth and death rates on the generational turnover, depending on the age-profile of consumption and on the extent of annuity market imperfection. Using recent data from the National Transfer Accounts on consumption profiles for a number of countries, we assess in a comparative way the sign and magnitude of generational turnover and its impact on consumption growth. We find considerable cross-country variation and trace it back to differences in demographic rates and in the consumption structure.