In an article posted on the website of Project Syndicate, he said the 'hopes' and 'fears' of global leaders at the IMF-World Bank Spring Meetings in Washington centre around China as its failure and success carry risks for the world economy.
"A China failure scenario could reassemble the events of the 1930s, characterised by competitive devaluation and plummeting real economic activity," Subramanian said.
China is the one country that might be able to jump-start the sputtering global economic recovery and its own economic growth is based on a foundation that is increasingly showing signs of strain, he said.
A failure scenario would be unique in post-World War II history. Because China's economy is so large, the consequences would reverberate worldwide, he said in an article - 'The Risks of China's Failure and Success'.
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"But, unlike in 2008, when the US dollar appreciated, allowing emerging markets to revive quickly, the renminbi would likely depreciate should China's economy experience a serious downturn, spreading deflation far and wide. Other currencies might depreciate as well, some as a result of deliberate policy," he added.
"This would be very different from the previous episode of global imbalances when large Chinese current-account surpluses were at least offset to some extent by rapid Chinese growth," he said.
IMF in 'World Economic Outlook' released earlier this week has upgraded its China growth forecast by 0.2 percentage points for this year and the next to 6.5 per cent and 6.2 per cent, respectively.
China clocked 6.9 per cent growth in 2015 when the Indian economy expanded by 7.3 per cent.