What should the gold/silver ratio be?

The price of gold is dominated by investment/monetary demand to such an extent that nothing else matters as far as gold's intermediate- and long-term price performance is concerned. Investment/monetary demand is probably also the most important driver of silver's price trend, although in silver's case industrial demand is also important. In addition, changes in mine supply have some effect on the silver market, because unlike the situation in the gold market the annual supply of newly-mined silver is not trivial relative to the existing aboveground supply of the metal. Given that the change in annual mine supply is irrelevant to the gold price and is not close to being the most important driver of the silver price, why do some analysts argue that the gold/silver ratio should reflect the relative rarities of the two metals in the ground? We don't know, but it isn't a valid argument.

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