The only economically optimal solution is one in which there is no redistribution. This only occurs in a currency that approximates the ideal of no inflation and no deflation. Such a currency or multiple currencies would maximize the incentive to invest without resulting in a redistributive decline in purchasing power if one chooses not to consume or invest.
(Argument for inflation)
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Thaaanos we have profound differences in opinion. I have broken your post down into its core arguments below.
1) Sound money does not generalize on the macroscale.This is a claim unsupported by the historical record. Societies including our own have lived under a gold standard in the past. Rome's currency was sound for more or less the entire history of the Roman republic. It was not until the Roman republic failed and Rome became empire that the currency was debased in earnest
2) Slight inflation targeted at 2% does not have major redistributive effects.An inflation rate of 2% will result in a loss of almost 50% percent of purchasing power over a period of a single generation 30 years. I would call that a major redistributive effect.
3) The redistributive effects from inflation are "equalizing effects".I completely disagree inflation primarily benefits first movers those granted the authority to debase the currency. Banks and those with political connections are the prime beneficiaries. Inflation redistributes from bottom and especially the middle class to the financial elite. Rather then an equalizing effect it worsens inequality.
4) Knowledge does not come cheap... So funding will always be needed to equalize the playing field...a slight inflation guaranties the availability of funding. There is nothing wrong with working to finance an education. Indeed this used to be how it was normally done until we decided to sell out our children's future with government guaranteed non dischargeable student loans. The "guaranteed" of funding you speak up results in ballooning out of control costs malinvestments in non productive fields and lifetimes of debt servitude.
5) It is necessity that at least one equalizing and redistributive force will exist. Redistribution in form of diffusion of wealth is a stability requirement.To the degree this is true this is what taxation is for. Taxation, however, is much more transparent and thus requires both public justification and also allows for opposition to develop.
6) There is no such thing as morality in macroeconomics, morality comes in politics.Cooperative rather than predatory behavior develops naturally over time in transparent systems composed of repeatedly interacting agents able to choose between cooperation and defection. Immoral behavior in economic interactions is not sustainable over the long run as victims either go extinct or learn to protect themselves.
For the group cooperation is the superior economic choice. Subgroups with rule systems that facilitate cooperation aka morality will therefore outcompete and eventually replace those without such rules. The fact that Macroeconomics devotes little attention to long term sustainability of systems or the role of morality in maintaining this stability says more about the infancy and incompleteness of macroeconomics then it does about morality.
On
1) Roman empire is not counter-evidence, their fall was as you have quoted because the "citizens did not want to save the state" pretty much the reason the eastern part failed eventually. It was only after magna carta the french revolution and the dawn of national states that states regained their "legitimacy". Btw why also Eurozone will eventually fail too, it is increasingly perceived as an oppressor. The economic unsustainablility of oppressor states is self evident I think in history.
But on to the point now sound money for a state means constant surpluses, that means money taken out of the economy by taxation for what? to keep it idle? why tax it in the first place then? It also means trade surpluses which if not allowed to be balanced back by the currency channel they will balance by other channels but they
will balance
On a side-note Getting cash inflows is not always a good thing as the French indemnity of 1871 has shown. France the payer issued bond and later did much better, while Germany on the receiving end did much worse by getting caught in a speculative bubble.
More here
http://blog.mpettis.com/2014/05/why-a-savings-glut-does-not-increase-savings/2) Its the penalty for not being economically active over a period of a single generation 30 years, but in the short term I wouldn't call it major.
3) Well if done right, cannot blame inflation for the failings of banks. Obviously something is missing from the equation to account for the Minsky moments
4) But thats what funding does it allows you to first have education and work after with all the benefits of education, what is better paying tuition fees grilling burgers or writing software? Having your parents pay for your education is not equalizing the playing field.
5) Taxation is lacking in "resolution" as a redistribution, it is too intrusive, too costly, to enforce it and needs too much management also taxation targets the cash flows not the accumulation.
As a Redistribution mechanism Inflation is like pouring champagne over a pyramid of glasses until all glasses are full, Taxation is like going over every glass and filling them one by one
6) Cooperation is not always moral, which is why we have antirust laws.