Daniel Hemel on 'The Hidden Wealth of Nations'

What’s the Matter with Luxembourg?

The Grand Duchy of Luxembourg is rarely the subject of international attention, much less the target of international opprobrium. With fewer than 600,000 inhabitants, it is less populous than the City of Milwaukee. With an area of under 1,000 square miles, it is smaller than the State of Rhode Island. Conquered twice by Germany and thrice by France, it is much more accustomed to the role of victim than villain. In the words of one New York Times writer, “Luxembourg is about as cuddly as countries come.”

But in the view of economist Gabriel Zucman, Luxembourg is the enfant terrible of the European Union. “If we wish to prevent the Irish and Cypriot catastrophes from happening again,” Zucman writes near the end of his new book, “it is essential that Luxembourg go backward” (p. 91). Back to where is not clear, but what is clear is that Zucman wants Luxembourg to change its ways. And if the tiny state refuses to cooperate, Zucman says, Luxembourg should be excluded from the EU and blockaded by its neighbors.

Why does Zucman place so much blame on little Luxembourg? The answer has to do with a statistical quirk—an inconsistency in international economic data. As Zucman notes, Luxembourg’s official statistics show that shares of mutual funds domiciled in the Grand Duchy are worth $3.5 trillion. But when Zucman looks at official data from other countries on their international investment positions, he can account for only $2 trillion of Luxembourgish mutual fund shares recorded as assets. To whom does the remaining $1.5 trillion belong? We don’t know. “This,” says Zucman, “is a big problem” (p. 38).

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