WORRIES about the dollar’s dominance of the global monetary system are not new. But debate about replacing the beleaguered dollar, whose trade-weighted value has dropped by 11.5% since its peak in March 2009, has resurfaced in the wake of a global financial and economic crisis that began in America. China and Russia, which have huge reserves that are mainly dollar denominated, have talked about shifting away from the greenback. India changed the composition of its reserves by buying 200 tonnes of gold from the IMF.