Foreign exchange reserves (also called
forex reserves or
FX reserves) are cash and other reserve assets held by a
central bank or other
monetary authority that are primarily available to
balance payments of the country, influence the foreign exchange rate of its currency, and to maintain confidence in financial markets. Reserves are held in one or more
reserve currencies, nowadays mostly the
United States dollar and to a lesser extent the
euro.
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The debate here is whether Chinese forex reserve has gold not whether reserves can include gold. Reserves used to include gold because you needed it to trade. Nowadays its excluding gold because its not used for trading nor settlement of trade.