government saving/spending–in theory
In theory, governments spend more than they take in to ease the pain and speed recovery during bad economic times. They spend less than they take in during booms to moderate growth and repay borrowings made during recession.
what really happens
In practice, this occurs less than one might hope. Even so, the Trump administration is one for the books. Despite coming into office after seven growth years in a row, Trump endorsed an immediate new dose of government stimulus–a bill that cut personal income tax for his ultra-wealthy backers and reduced the corporate tax rate from nosebleed levels to around the world average. While the latter was necessary to prevent US companies from reincorporating elsewhere, elimination of pork barrel tax breaks for favored industries that would have balanced the books was conspicuously absent.
The country suddenly sprouted a $1 trillion budget deficit at a time when that’s the last thing we needed.
Then came the coronavirus, Trump’s deer-in-the-headlights response and his continual exhortations to his followers to ignore healthcare protocols belatedly put in place have produced a worst-in-the-world outcome for the US. Huge economic damage and tens of thousands of unnecessary deaths. Vintage Trump. National income (and tax revenue to federal and state governments) is way down. And Washington has spent $2 trillion+ on fiscal stimulus, with doubtless more to come.
To make up a number, let’s say we end 2020 with $27 trillion in government debt (we cracked above $26 billion yesterday). That would be about 125% of GDP, up where a dubious credit like Italy has typically been. It would take 7.7 years worth of government cash flow to repay our federal debt completely. These are ugly numbers, especially in the 11th year of economic expansion.
At some point, potential buyers of government bonds will begin to question whether/when/how they’ll get their money, or their clients’ money, back. In academic theory, foreigners work this out faster than locals. In my experience with US financial markets, Wall Street is the first to head for the door. The result of buyers’ worry would be that the Treasury would need to offer higher interest rates to issue all the debt it will want. To the degree that the government has been borrowing short-term (to minimize its interest outlay) the deficit problem quickly becomes worse. Three solutions: raise taxes, cut services, find some way of not repaying borrowings.
Historically, the path of least resistance for governments is to attempt the last of these. The standard route is to create inflation by running an excessively loose monetary policy. Gold bugs like to call this “debasing the currency.” The idea is that if prices are rising by, say, 5% annually and the stock of outstanding debt has been borrowed at 2%, holders will experience a 3% annual loss in the purchasing power of their bond principal.
The beauty of this solution in politicians’ eyes is the ability it gives them to blame someone else for what they are doing.
The downside is that international banks and professional investors will recognize this ploy and sell their holdings, creating a potentially large local currency decline.
The issue with the devaluation solution in today’s world is that sovereign debtors have been trying for at least the past decade to create local inflation–without success.
This would leave either tax increases or default as options. The slightest inkling of either would trigger large-scale flight from the country/currency, I think. Again, Wall Street would likely be the first. Holders of local currency would assume third-world-style capital controls would soon be put in place to stop this movement, adding to their flight impulse.
The most likely signal for capital flight to shift into high gear, in my view, would be Trump’s reelection.