My last post, “The Big Picture on Debt,” used a chart from a recent Congressional Budget Office report (pictured below) to look at the history of U.S. debt. It is worse now than at any other time except at the end of World War II. But after 1945 massive military spending ended rapidly, the economy started growing briskly and debt as a percentage of GDP shrunk rapidly.
The light purple section at the right hand side of the chart portrays CBO’s debt projection for the next 25 years. As the report itself makes clear, CBO is using favorable economic assumptions in this projection. Without these favorable assumptions, our future debt will be much worse than this. And the same trends continue indefinitely into the future beyond the 25 year window.
Right now our huge debt is almost “free” money because interest rates are so low. But this situation cannot last much longer without setting off an inflationary spiral. As interest rates eventually resume their historical average of about 5%, interest payments on our accumulated debt will skyrocket and therefore increase the size of the annual deficits.
There are only three ways to shrink debt as a percentage of GDP: 1) cut spending, 2) achieve faster growth and 3) raise tax revenue. Let’s look at each in turn:
- Government spending as a percentage of GDP is not shrinking but actually growing. Primarily this is because of the massive growth of the big three entitlement programs: Social Security, Medicare and Medicaid. All other government spending is subject to Sequester limits. This is a crude and insufficient way to control discretionary spending.
- GDP growth, averaging 2.2% annually since the end of the Great Recession five years ago, is much slower than the overall average growth of 3.3% since the end of WW II. Major tax reform at both the individual and corporate levels, with lower tax rates offset by closing loopholes and shrinking deductions, would give a big boost to economic growth. But there is resistance to cutting tax deductions.
- Raising taxes will in principle decrease deficit spending but the trick is to do it without hurting economic growth. Both individual and corporate tax reform could accomplish this if done in the right way. See here and here for specific proposals.
Conclusion: there are concrete ways to find solutions to get our massive accumulation of debt under control and shrinking as a percentage of GDP. But the prospects for action are gloomy.