French economist Gabriel Zucman has come to California bearing a familiar French solution to a fiscal problem: another tax.

Once based at the University of California, Berkeley, Zucman is back and campaigning for Proposition 40, which would impose an allegedly one-time five percent tax on the net worth of Californians worth more than $1 billion. Zucman, who coauthored the proposition, estimates that the tax could raise about $100 billion and claims that 90 percent of the proceeds would go to healthcare.

The California Legislative Analyst's office is far more cautious, saying it would raise only "tens of billions" and could cause a long-term loss of income-tax revenue as wealthy people leave the state with the companies they created.

I've written plenty about why wealth taxes are economically destructive, administratively nightmarish and unlikely to achieve anything close to what their advocates promise. But Zucman's prescription is wrong for a more fundamental reason, as his (and my) native country shows: Raising taxes to fuel ever-larger demands for government spending is a recipe for disaster.

Unless you've been living in a remote cave recently, you've likely seen all the protests and destruction in France. But do you know why it's happening?

As another economist, Paul Krugman, rightly noted back in 2017, "France offers a social safety net beyond the wildest dreams of U.S. progressives: guaranteed........

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