The policy measures taken in Japan to revive economic growth are "quite dangerous," billionaire investor George Soros told CNBC in an interview on Friday.
(Read More: BOJ Throws In Kitchen Sink in War With Deflation )
Japan's new Prime Minister Shinzo Abe is on a concerted drive to kick start the world's third largest economy, which has been hampered by two decades of deflation. On Thursday, the Bank of Japan unveiled a slew of radical steps to boost inflation, sparking huge gains in the Nikkei stock index and sending the yen to three-and-a-half year lows against the dollar on Friday.
(Read More: Bank of Japan Policy Is Huge, Risky Experiment )
"What Japan is doing is quite dangerous," Soros told CNBC's Bernie Lo on the sidelines of a conference by the Institute for New Economic Thinking in Hong Kong.
"If what they are doing gets something started, they may not be able to stop," he said, referring to the yen, which has fallen sharply in recent months on expectations of aggressive monetary easing.
(Read More: Central Bank Chiefs Reluctant to Follow Japan )
"If the yen starts to fall and (Japanese) people don't want to put their money abroad then the yen's fall could become an avalanche," he said.
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