Effects of Future Demographic Changes on the US Economy: Evidence from a Long-term Simulation Model

Demographics, especially the size and the age composition of the population, contribute substantially to the growth and structure of any economy. Over the next 55 years, the age composition of the US population will change dramatically, as the post-World War II ‘baby boom’ ages into retirement. In this paper, we use a long-term interindustry macro model of the US economy to examine how the age composition of the US population affects overall economic growth as well as the output/employment structure of the economy. We find that the system of funding government commitments to pension and medical care for the elderly is a primary channel through which demographic effects translate into economic effects.