Irving Fisher,
The Purchasing Power of Money…
“ If it costs nothing to have bullion coined into money, and nothing to melt money into bullion, there will be an automatic flux and reflux from money to bullion and from bullion to money that will prevent the price of bullion from varying greatly. On the one hand, if the price of gold bullion is greater than the money which could be minted from it, no matter how slight the difference may be, the users of gold who require bullion—notably jewelers—will save this difference by melting gold coin into bullion. ”
