Based on what’s happened in Greece and other European nations, we know from real-world evidence that even nations from the developed world can spend themselves into debt trouble.
Where’s the point where investors stop buying the debt? Where’s the point when interest on the debt becomes too much of a burden?
Most famously, a couple of economists crunched numbers and warned that nations may reach a tipping point when debt is about 90 percent of GDP.
I was not persuaded by this research for two reasons.
First, I think it’s far more important to focus on the underlying disease of too much government, and not get fixated on the symptom of too much borrowing. If I go see a doctor because of headaches and he discovers I have a brain tumor, I want him to address that problem and not get distracted by the fact that head pain is one of the symptoms.
Second, there are big differences between nations, and those differences have a big effect on whether investors are willing to buy government bonds. The burden of debt is about 240 percent of GDP in Japan and the nation’s economy is moribund, for instance, yet there’s no indication that the “bond vigilantes” are about to pounce. On the other hand, investors are understandably leery about buying Argentinian government debt, even though accumulated red ink is less than 40 percent of economic output.
So what about America, where government borrowing from the private sector now accounts for 82 percent of GDP? Have we reached a danger point for government debt?