Whatever the final outcome in the Cyprus crisis — we know it’s going to be ugly; we just don’t know exactly what form the ugliness will take — one thing seems certain: for the time being, and probably for years to come, the island nation will have to maintain fairly draconian controls on the movement of capital in and out of the country. In fact, controls may well be in place by the time you read this. And that’s not all: Depending on exactly how this plays out, Cypriot capital controls may well have the blessing of the International Monetary Fund, which has already supported such controls in Iceland.

That’s quite a remarkable development. It will mark the end of an era for Cyprus, which has in effect spent the past decade advertising itself as a place where wealthy individuals who want to avoid taxes and scrutiny can safely park their money, no questions asked. But it may also mark at least the beginning of the end for something much bigger: the era when unrestricted movement of capital was taken as a desirable norm around the world.

It wasn’t always thus. In the first couple of decades after World War II, limits on cross-border money flows were widely considered good policy; they were more or less universal in poorer nations, and present in a majority of richer countries too. Britain, for example, limited overseas investments by its residents until 1979; other advanced countries maintained restrictions into the 1980s. Even the United States briefly limited capital outflows during the 1960s.

Over time, however, these restrictions fell out of fashion. To some extent this reflected the fact that capital controls have potential costs: they impose extra burdens of paperwork, they make business operations more difficult, and conventional economic analysis says that they should have a negative impact on growth (although this effect is hard to find in the numbers). But it also reflected the rise of free-market ideology, the assumption that if financial markets want to move money across borders, there must be a good reason, and bureaucrats shouldn’t stand in their way.