jones1,
The idea is to let the currency definition provide an incentive to the free market to control the population and the happiness level. Individuals would not decide how to control population or happiness, they will only seek personal profit. I do not know HOW the free market will figure it out. Defining the currency only tells the free market where we want it to go. The currency definition provides the system-wide incentive. The tricky part is figuring out how to measure the population and happiness levels, and where to inflate and deflate the currency. The inflation and deflation could be flat and system wide, but that seems to avoiding opportunity. Doing too much would be too much like government because inflating and deflation the currency in specific areas is just another way of say subsiding and taxing.
The ideal currency is one which promotes free trade, which is what allows people with differing talents and abilities to obtain the things they want (when they're not good at making the things they want, but someone else is) by doing the things they're good at (when the thing they're good at doing produces things they don't want, but other people want those things). In free trade, currency flows from people who consume resources to people who produce them. The fair distribution of currency is for the people who consume the most resources to have the least money, and vice versa, which, incidentally, provides a clear incentive for people to conserve limited resources, and this is what actually happens when free markets are allowed to function without interference.
Yes, except who "produces"? The miners or the shareholders? In a feudal system, wasn't the landlord just the majority shareholder? Yes, a feudal system was great at conserving resources, keeping the economy too miserable to overpopulate. Democracy was the fix to redistributing the wealth along more equitable lines through taxes and law against the free trade system, so now we're able to destroy the biosphere in no time flat. Except that now we don't tax the wealthy as much, so we're reverting back to a feudalism by destroying government with toxic assets and printing to save the banks. I'm a fan of government....if it wants to increase the MEDIAN wealth of its citizens. Free trade is not "fair" because smart people can figure out how to game the system even if everyone agrees to each transaction. Well, actually that is fair, in an evolutionary sense, and it can prevent overpopulation. So yes, destroying the world's economy for the benefit of the smartest and letting all the stupid people die out is a great idea. Then only the smart will breed and the process starts all over again. On the other hand, working together might offer a better solution than tempting the farmers to raid your mansion with pitchforks. That's why I am suggesting a different definition of currency.