【摘要】Compositeexchangerateindexcanbeobtainedthroughtheratioofaverageex changeratesoftwoperiods,orweightedaverageofsingleexchangerateindex .These twomethodswillreachunanimitywhiletheformerexcludetheinfluenceoftrading structuremovementto getthefixedcompositeexchangerateindex ,andthelatter weightedby“mixedcurrency”ofreportingperiodcalculatedwiththeexchangerateof baseperiod .Beingregardedasakindofprice ,thecompilationofexchangerateindexis similartocommonpriceindex .Itisfeaturedbytheweightsof“mixedcurrency”of tradingvolumeaccordingtotherequirementsofitselfasarelative .Andtheaveragein dexismerelyavarietyofcompositeexchangerateindexratherthananindependent form .