When other fears fade, it seems US debt concerns often rise anew, particularly in our currently debt-phobic, skeptical world. After all, the recent Fiscal Charade—err, we mean "Cliff"—was at root a debate between two parties that each presume our debt is hugely problematic and must be reduced. They merely disagreed (and will disagree) on the means. In addition, it seems we have another showing of the US debt ceiling's political theatre underway now.
But all these are just derivatives of fear of the debt itself. Headlines shriek of deals that solve nothing, assure eventual insolvency, burden our children or represent quick roads to become Grecian. However, when you take a broader look at the US's debt, it's hard to reach the conclusion we have much of a crisis.
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Exhibit 1 cuts right to the heart of the matter, showing net debt interest payments' share of US federal tax revenue. Currently, that level is roughly 9%—a level easily met in the past and lower than the entirety of the 1980s and 1990s.
Exhibit 1: US Net Debt Interest Payments as a Percent of Federal Tax Revenue
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Source: Federal Reserve Bank of St. Louis, accessed on 1/8/2013.
Several major factors combine to determine the affordability of our debt. For example, Exhibit 1 comprises three major data points: tax revenues (determined by economic activity and tax policy), government spending (current and past) and interest rates on the debt.
One key factor in our currently easily affordable interest payment load is multi-generational low interest rates exist across the entirety of the Treasury curve. Which might beg the question: What might happen if they rise? The answer is: in the near term, probably not much. Here's why.
With rates so low, the Treasury has embarked on a strategy pushing the maturities of Treasurys longer. (See Exhibit 2.)
Exhibit 2: Weighted Average Maturity of US Debt
Source: Bloomberg, LP, as of 1/8/2013.
The weighted average maturity across all US Treasury debt is now 64.6 months—over five years—essentially meaning it would take years for the full effect of rate changes to be felt. It also means Treasurys still haven't experienced the full impact of recent years' declining rates. Consider, today's roughly 2% 10-year Treasury rates are fully 200 basis points lower than a decade ago—so a maturing bond today is refinanced at rates roughly half as high. Similarly, five-year Treasury rates—near the average maturity of US Treasury debt—were at 1.18% at the end of 2012, also about 200 basis points lower than five years earlier.i And this is nothing new—we've been refinancing bonds at lower rates for many years.
And it would take quite an upward move in interest rates for that to change soon. Currently, five- and 10-year bond rates would have to more than double for Treasury refinancing to result in higher per-bond interest costs. And it's important to note that even if Treasurys were refinancing at higher levels, that wouldn't necessarily cause an affordability pinch.
As we mentioned, other factors could change, impacting the affordability of our debt. But when you consider the totality of the situation, there's just next to no sign our debt is anything resembling a timely problem.
iSource: Federal Reserve Bank of St. Louis, as of 01/11/2013.
source: Market Minder
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