http://www.bloomberg.com/graphics/2018-buying-citizenship/
Cheaper than a Gulfstream, nimbler than a superyacht, a second passport - or a third or fourth - has become another trophy for the ultra-wealthy. ...
While many nations, the U.S. included, allow legal residents the chance to apply for citizenship after meeting certain criteria, only 10 countries permit outsiders to acquire citizenship outright. Most require payment in the form of a direct investment, typically in property or a local business.
Conveniently, eight of them are classified by the IMF as offshore financial centers, though Kalin said stability, not tax avoidance, is what motivates most buyers. That and bragging rights. "If you have a yacht and two airplanes, the next thing to get is a Maltese passport," he said. "It's the latest status symbol. We've had clients who simply like to collect a few."
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