Budget Deficits, National Saving, and Interest Rates

This paper provides new evidence that sustained budget deficits reduce national saving and raise interest rates by economically and statistically significant quantities. Using a series of econometric specifications that nest Ricardian and non-Ricardian models, we obtain evidence of strong non-Ricardian behavior in aggregate consumption. Consistent with several recent studies, we find that projected future deficits affect longterm interest rates, but current deficits do not. Our estimates suggest that each percent-of-GDP in current deficits reduces national saving by 0.5 to 0.8 percent of GDP. Each percent-of-GDP in projected future unified deficits raises forward long-term interest rates by 25 to 35 basis points, and each percent-of-GDP in projected future primary deficits raises interest rates by 40 to 70 basis points.