As a result of the pandemic, U.S. general government debt (federal, state, and local obligations combined) has surged above 130 percent of GDP, more than double what it was in 2007. And, recent U.S. experience is far from unique. Looking at the G20, average public debt rose from 52% of GDP in 2007 to 74% in 2019 and is projected to reach 91% next year.

Unsurprisingly, as government debt increases, the debate over public spending heats up. Are these high debt ratios sustainable? Should we be cutting spending and raising taxes to reduce what will otherwise be a large financial burden on future generations?

In this post, we emphasize that not all government spending is created equal. Investment in physical infrastructure, as well as in education and health—especially for children—can boost future GDP. Moreover, delaying inevitable outlays can boost long-run costs. As a result, a failure to make productive, self-financing investments due to concerns about the debt would be not only tragic, but counterproductive….