Last month, Congress sparred with the president over a partial budget, but with few real cuts, America’s slow march toward an epic debt crisis went on undeterred. With over $38 trillion in debt and interest payments exceeding defense or Medicare spending, one would expect lawmakers to confront reality and do the difficult work needed to restore fiscal sanity. But why would they? Cutting entitlements and increasing middle-class taxes rarely make for winning campaign slogans.
It’s no surprise, then, that some prefer to pin their hopes on AI as America’s fiscal savior. Vanguard’s chief economist Joe Davis argued there’s as high as a 50 percent chance AI will prevent a debt-driven economic malaise. Elon Musk voiced a similar conclusion late last year, claiming AI and robotics are “the only thing that’s going to solve the US debt crisis.”
The argument goes like this: an AI boom drives explosive economic growth and tax revenue, while, at the same time, productivity gains impressively offset any upward pressure on interest rates. The deficit becomes a surplus and the overall debt shrinks, possibly disappearing entirely.
If that sounds less like a policy plan and more like a retirement strategy built around winning the lottery, you’re not wrong. The entire scenario hinges on a massive if: that AI generates extraordinary revenue and does it quickly enough to outrun rising interest costs.
But even if the government hits the tax revenue jackpot before Congress drives us off a fiscal cliff, it would be naïve to assume lawmakers would pay down the debt.
The More the Government Gets, the More the Government Spends
For the sake of argument, suppose the tech optimists are right, and the federal government enjoys a massive AI-driven revenue windfall. Understanding what happens next requires understanding the incentives of politicians and their voters.
This is where public choice shines. Rather than assuming politicians and voters act in everyone’s best interest, this branch of economics recognizes that people don’t become angels once they interface with the government. Incentives matter, especially for politicians.
Incentives are why we have a deficit in the first place. The public isn’t particularly interested in financial restraint because high spending and low taxes benefit them now, and the resulting debt is some future generation’s problem. Politicians surely see the crisis brewing, but solving it is a sure way to get voted out of office. And so the incentive is to run constant deficits and grow the debt year after year, decade after decade.
Without changing incentives, it will be hard to avoid spending new revenue. Ballooning coffers mean voters will demand that the government dole out more goodies (especially if AI displaces workers along the way). Washington already excels at entertaining expensive ideas: healthcare subsidies for well-off families, a universal basic income, generous tax cuts, a fifty-percent increase in military spending, all despite the pushback the current deficit’s able to muster. Imagine the wish list after it drops even a little.
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