SHANGHAI, April 28 - The president of the Shanghai Gold Exchange (SGE) called for a new super-sovereign currency to offset the global dominance of the U.S. dollar, which he predicted would decline long term, while gold prices rally.

Concern has mounted among some market participants over the dollar-denominated system as the U.S. Federal Reserve cut interest rates to near-zero and embarked on unlimited quantitative easing to contain the economic damage of the coronavirus pandemic.

The measures have helped to drive gold prices XAU= to more than seven-year-highs this month, while the dollar has been range-bound. =USD

Wang Zhenying, who heads the world's largest physical spot gold exchange, said in an interview the gold gains should be sustained, but ultimately a new kind of currency was needed.

"Future global trade needs a super-sovereign currency system under which no single country has the power to freeze the international assets of another country," said Wang, who held senior roles at China's central bank, which supervises the SGE.

Wang foresaw a decline in the U.S. currency, triggered by the Fed's monetary policies.

"When the Fed turns on the liquidity tap, the U.S. dollar will, in theory, be in a long-term depreciatory trend," he said, even though the panic of the current crisis could trigger a temporary scramble for the greenback.

His comments on a new global currency echo a previous proposal to reform the international monetary system during the 2008/09 global financial crisis.

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