Dan writes, “This is a great argument for some sort of spending cap, such as the Swiss Debt Brake or Colorado’s Taxpayer Bill of Rights.”
But let’s look beyond the headlines to understand precisely why a spending cap is so valuable.
If you look at the IBD chart, you’ll notice that revenues are not very stable. This is because they are very dependent on the economy’s performance. During years of good growth, revenues tend to rise very rapidly. But when there’s a downturn, such as we had at the beginning and end of last decade, revenues tend to fall.
But you don’t have to believe me or IBD. Just look at federal tax revenues over the past 30 years. There have been seven years during which nominal tax revenues have increased by more than 10 percent. But there also have been five years during which nominal tax revenue declined.
This instability means that it doesn’t make much sense to focus on a balanced budget rule. All that means is that politicians can splurge during the growth years. But when there’s a downturn, they’re in a position where they have to cut spending or (as we see far too often) raise taxes.
But if there’s a spending cap, then there is a constraint on the behavior of politicians. And assuming the spending cap is set at a proper level, it means that – over time – there will be shrinking levels of red ink because the burden of government spending will grow by less than the average growth rate of the private economy.
In other words, compliance with my Golden Rule!
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