Nouriel Roubini, professor of economics at New York University, said bitcoin was “the mother of all bubbles”
favoured by “charlatans and swindlers” as it fell below $8,000 (£5,600) early on Friday, marking a 30% drop
since the beginning of the week as investors became increasingly twitchy about a clampdown on cryptocurrencies by regulators. Later it rallied, climbing back over $8,600 by 3pm (GMT).
Bitcoin has lost more than half its value since hitting a peak of near $20,000 in the week before Christmas.
Dubbed “Dr Doom”, Roubini said the sharp fall was the beginning of a crash that would see the value of the
digital currency plummet “all the way down to zero”.
The latest sell-off follows reports that US regulators are investigating whether the spike in the price of bitcoin
in 2017 was the result of market manipulation. India’s finance minister said the country did not recognise the
cryptocurrency as legal tender, pledging to fight their use for “illegitimate activities”.
Digital currencies have also been hit by the news that Facebook is banning all adverts for cryptocurrencies.
Ethereum, ripple, litecoin and other digital currencies all suffered double-digit percentage falls on Friday as investors took fright.
“Policymakers and regulators are getting worried. Pretty much every G20 policymaker is talking about a crackdown,” Roubini told Bloomberg Television. “We can’t allow it to become the next Swiss bank account for use by criminals and people evading tax.”
He added that the 1,300 cryptocurrencies or initial coin offerings currently in existence were “a scam”. “Most
of them are even worse [than bitcoin] and don’t have any intrinsic value like bitcoin. So if bitcoin is a bubble,
it’s a bubble to the power of two or three.”
Critics have warned that bitcoin has all the hallmarks of a classic speculative bubble that could burst, like the dotcom boom and the US sub-prime housing crash that triggered the global financial crisis. Last year it rose in value by more than 900%, making it the best performing asset of 2017.
Robert Shiller, the Nobel prize-winning economist, said last week that while bitcoin was a “really clever idea”,
it would not become a permanent part of the financial world.
“I tend to think of bitcoin as an experiment. It is an interesting experiment, but it’s not a permanent feature of
our lives,” he said, speaking at the World Economic Forum in Davos.
Bitcoin is not recognised by any central bank and currently allows people to bypass banks and traditional
payment methods to pay for goods and services. Banks and other financial institutions have been concerned about bitcoin’s early associations with money laundering and online crime, and it has not been adopted by
any government.
However, the spike in the price is forcing regulators and institutions to consider how to respond.
Jon Cunliffe, deputy governor for financial stability at the Bank of England, has said that bitcoin is too small
to pose a risk to the global economy. However, he warned that investors should “do their homework” before
backing the digital currency.
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Bitcoin faces a global backlash from regulators and governments
- India’s finance minister said this week that the country does not recognise cryptocurrencies as legal tender and would take action against their use in funding “illegitimate activities”.
- Facebook has banned bitcoin and other cryptocurrency adverts on its site.
- South Korea announced at the end of December that it was planning a crackdown on trading in the digital currency, preparing a ban on opening anonymous cryptocurrency accounts and new legislation to enable regulators to close coin exchanges if they felt there was a need to do so.
- UK prime minister Theresa May said last week she was concerned that criminals were taking advantage of digital currencies. “In areas like cryptocurrencies, like bitcoin, we should be looking at these very seriously,” she said.
- Steven Mnuchin, US treasury secretary, signalled that bitcoin and cryptocurrencies would be subject to greater regulatory scrutiny in the world’s largest economy.