Right, but "it's not very useful" is? How about "it's not very useful because..."?
Now now, it was you who originally made the claim that it
is useful. I didn't bother saying why it wasn't because I was waiting for an explanation from you first.
Okay. It's useful because of nominal wage rigidity.
You know that begs the question "why."
Rothbard and Mises didn't. You said "what you and Hayek propose are very different". Hayek did want a constant NGDP target.
It appeared you were asking me what the difference was between Rothbard/Mises and Hayek. I meant the entirety of the theory in general when referring to Hayek.
That's not a premise or conclusion of any economic theory. Everybody agrees that growth is driven by productivity. Keynesian economics isn't even about growth. It's a business cycle theory.
In order to even have a theory of the business cycle you have to explain how economic growth works, and obviously Keynes did. Growth and productivity are virtually the same thing. The very definition of economic growth is an increase in production. And yes, Keynes did in fact say that spending drove production and thus growth.
He didn't misinterpret Say's law at all. The misinterpretation is where people don't stop and think for half a second. "'Supply creates its own demand?! If I supply dirt from my backyard, it doesn't mean anybody is going to want it. Deeeerrr.". That's obvious to everybody, so chances are that's not what the phrase means?
Yes, actually, you have completely misinterpreted it. Just like Keynes. In order to demand something, you must have a supply of something to demand it with. Demand is not want, otherwise we could get out of economic slumps by just proclaiming how much we want stuff. Dirt is not something many people would want, so it could not be used to demand much at all. Money is simply the medium of exchange, the common item used, with which to demand other goods and services. You cannot demand a TV without having the money to pay for it. In reality, you are simply exchanging your money for the TV. The seller of the TV is demanding your money, and paying for it with the TV.
Supply creates its own demand means that somebody only supplies a good for the explicit purpose of demanding another good. For every good you supply, you demand other goods totaling to the same value.
It is correct that somebody supplies a good in order to demand another good, if by supply you mean sell. If I sell a TV, I am demanding money. It is incorrect to say you demand other goods totaling to the same value. Value is subjective. You are selling goods you value less than the goods you are buying. That is the entire point of an exchange. If you valued both items in an exchange equally, the exchange would not take place because it would be of no benefit to you.
The criticism of Say's law Keynes made was that it doesn't necessarily hold at all times in a monetary economy. People don't need to demand other goods to the same value of what they supply, they can demand to hold liquid money also. This can create disequilibrium in the short run. So this is a case where an expansion of the money supply isn't harmful, if the expansion is to satisfy an increase in the demand for money.
Again, the argument you are using is largely a strawman. Say's law is not about demanding goods of the same value. People do not exchange goods that are equal. They exchange a good they place a lesser value on for a good they place a greater value on. Money is simply one of those goods. If people demand money, it is no more negative than if they demand a TV.
So what does this mean?
1. Prices will tend to fall.
"Standard demand and supply analysis shows that any increase of demand entails an increase of the price of the good in question. This price increase is not contingent (accidental), but systematic (necessary), which is what we mean when we assert that the increase of demand causes the price increase. Now in the case of money, its "price" can be defined as the total array of goods and services that can be exchanged for one unit of money. In other words, the price of money is the purchasing power of a money unit. If the demand for money increases, therefore, the purchasing power of money tends to increase beyond the level it would otherwise have reached, which means that the general level of money prices will tend to decrease."
There is more here that goes into depth about the topic.
The Demand for Money and the Time-Structure of Production - Jörg Guido Hülsmann - Mises Daily
Not sure why this is relevant to economic theory.
Because much of Keynes criticisms of free market economists were criticisms of very few, and in discrediting them he claimed to have discredited them all.
Another thing you should keep in mind is that modern "Keynesian" theory doesn't really have a lot to do with Keynes. The worst thing you can do to understand Keynesian economics is to read anything Keynes wrote. It's actually a bit of a misnomer. Maybe it would have been better to call it "New Monetarist" theory rather than "New Keynesian"? Either way, you need exposure to modern theory.
I understand that there are differences between Keynesians and modern Keynesians. Much of what you call "modern theory" is more similar to the economic theories of mercantilism that preceded even Ricardo and Smith.
God damn it. I've explained this a million ******* times. I'm asserting that to end the depression monetary policy needed to be loosened. The Fed kept it tight. When the war came along, monetizing the debt accidentally loosened monetary policy appropriately. That shouldn't have been necessary, the Fed should have just loosened to begin with. There is no room in my economics for counter-cyclical government spending.
Not very well. If you wanted to say that the depression ended because the Fed pursued loose monetary policy, then you should have said so clearly in the first place. Either way, that is completely inaccurate. When the Fed increased the monetary base by 100% over 5 years, conditions got worse. It was not until most of FDRs policies were repealed and inflationary monetary policy ended that the depression ended.
That begs the question "what trend?" And also the question of "what specific monetary policy would be advocated to do that?"
The linear trend of the log of NGDP. The same monetary policy as normal: you adjust the money supply til NGDP is on target.
Dear lord, I give up.