Dismal was not responding directly to me, he was responding to Bomb#20 response to me. My post responding to Bomb#20 is taking me a long time to write, so I thought that I would post this before I do my response to Bomb#20. Here is the link to Bomb#20's post, put here for completeness.
But that doesn't require higher marginal rates on some than on others. <<massive snip>>
While you are correct, the whole “paradox of thrift” is based on flawed economics at its heart. They will tell you in Economics 101 that the purpose of an economy is to allocate finite resources to human wants and needs.
Each’s wants and needs are personal, subjective and contextual. If an individual’s utility curves tell him “the best use of my money is to stuff it in my mattress” economics cannot determine he would be better off if we forced him to spend it on a flat screen TV or in an Asian massage parlor. The fact that him spending it in an Asian massage parlor would create more Asian massage parlor jobs does not mean it’s better for the economy. The purpose of the economy is not to create jobs; it’s to allocate resources to wants and needs.
While what you say is true you are ducking the entire argument.
Yes, the entire economy is made up of all of the individual transactions for a range of different reasons, but the sum of all of the decisions whether to spend or to save has a very much different impact on the overall economy then it does on an individual. This is why it is a paradox.
Thrift is a good for the individual, but it is bad for the economy as a whole, the macroeconomy. Money saved is not spent. This is a tautology, a statement that is true because of its form, in this case, because of the definition of the two words, not spending means that you are saving, not saving can only happen if you are spending (or you are destroying the money, which is also removing the money from the economy.) Like it or not the macroeconomy depends on spending and the consumption of the industrial product, which can only happen if consumers have the money which comes from wages.
Bomb#20 didn't base his argument on the pursuit of individual utility; he based on the rather common misconception that the banks loan the deposits in the bank to borrowers.
Keynes had the habit of cherry picking those rules of economics that helped make his point and suspending those that did not.
This statement is off of the mark regarding any economist. The so-called rules of economics were written by economists who had no intention of carving them into stone. The classical economists who started the study of economics were trying to apply the scientific method to the study of the economy. They had the very reasonable expectation that their findings were only a start to the process and that these findings would be thrown into history's trash-bin as better, more accurate insights were gained. Most would have been stunned and angry that their writings were being treated as fundamental truths about economics two and a half centuries after they wrote them. This would be much more the case when they saw how the industrial revolution changed the economy.
I understand that some people need the intellectual protection of fundamentalism. We see it in religion but also in politics where people in the US frequently praise the wisdom of the founding fathers by leaving us the brilliant fundamental law in the Constitution. That everything would be alright if we just governed according to original intent, determined presumably by conjuring up the spirits of the founding fathers too, as an example, ask them their opinion of a fine point of trademark law for computer games.
The reason that the Constitution has served us so well for so long is specifically that the Constitution isn't fundamental law, that it was the product of many compromises and as such it is vague and ambiguous, allowing generation after generation to interpret the document as they need to.
But fundamentalism is misplaced in the study of economics. The idea that the classical economists or anyone after them including Keynes discovered inviolable rules of economics is laughable.
Keynes certainly didn't feel that he had developed the last word in the study of economics. Keynes' book,
The General Theory of Employment, Interest, and Money was written as an outline to guide people who came after him in further studies to continue this most important work. They did, and many of their insights contradicted Keynes himself.
What Keynes and the economists who followed him realized was that the industrial revolution by producing a previously unheard of economic surplus had changed what had been the "rules" of economics. That the largely mercantilist, agrarian and artisan economy that the classical economists described was gone. That the supply side constrained economy that they represented was now a demand-side constrained economy.
This change is easy to see, the supply of the farming economy was land and the constraint the classical economists saw was the limited amount of land suitable for agriculture in England. After the industrial revolution supply became the production facilities and capital machinery. But these things only require money and in a country with bank created money, the economy creates any money that is needed for any worthwhile investment.
But what Keynes and the economists who followed him discovered about the modern industrial economy stunned a tiny but powerful group, the wealthy, because these insights very much diminished their role in the economy. This diminished role meant that not only were the wealthy less important to the economy but that their potential for earning income would decrease with their lesser role.
So they struck back and with the help of the economists like Friedrich Hayek and Milton Friedman they resurrected the classical economists and installed them as the fundamental foundation of the inviolable and natural "rules" of an alternate economics to the more realistic economics of Keynes and his followers.
They conflated this lack of realism by the introduction of the goal of the fantasy of the government-less, self-regulating free market. This was less the goal of the classical economists who saw the government as less of threat and the only solution to the much greater threat of private companies becoming monopolies or forming cartels.
The fantasy free market was the goal of the classical liberals of the 1830's England and of the neoclassical economists in the 1870's to the turn of the century like Marshall, Wicks, etc. The very same economics that gave us World War I and the Great Depression, the economics that Keynes was first trying to defend until he realized that it was wrong.
What these "rules" lacked in application to the industrial economy and in theoretical and historical support they more than made up for in the raw impact of the financial support from the wealthy. It is the wealthy who fund the chairs of economics in the universities, who fund economic research and who hire the economics graduates from the universities so that over time this alternate economics overcame the reality.
I think that these are the rules that you are talking about.