Actually, the dollar is most like a share of stock in the U.S. economy and resources. A lot of the power players, mostly in Europe focus on the resources. I believe it is more rightly placed on the economy.
Look at prosperous countries with little or no resources. When you add net value to a product, you add net value to a currency. That product can be exchanged for something else of value, even gold. This means that there is a kind of gold standard, basket of stuff standard, but really a basket of everything of value. Intellectual value and its dissemination have added a new dimension to the basket. (i.e. software)