now open the door to lobbying by other governments to include their currencies as well Why not add the Swiss franc or Canadian dollar? or for that matter why not include the russian rouble or Indian rupee? what was once the dignified preserve of obviously elite cur rencies could become the site of messy political battles for elevated status of course it can be argued that China's recent economic trajectory means that it's only a matter of time before does become a match for the SDR's incumbents. After all international use of the currency has been growing exponentially. But that optimistic assessment overestimates the yuan's prospects and illustrates danger of linear extrapolation of the past into the future Likewise, use of the yuan for the purpose of invoicing and settling trade with China is bound to continue growing But in terms of the all-important roles of a currency as an investment vehicel or reserve asset, the outlook for the yuan is