OK, instead of trying to answer all the questions I'll dabble in them one at a time.
MONEY SUPPLY
There are four measures M1 to M3 and MZM, which is money zero maturity, the broadest measure of all. If you want the data on the M's then go here
http://research.stlouisfed.org/fred2/series/M3SL/28That is the St. Louis Federal Reserve Bank, the main keeper of these things. They also keep all sorts of data on money flows in the banks and the financial markets.
You are right that in the 80's the money supply was a big deal and was said to be used by Volker's Fed to set monetary policy. Usually the Fed looks at broad measures of economic activity then selects the interest rate it wants. (They only set the shortest of short term rates, not all rates.) In order to kill the inflation of the period Volker and the Fed used this targeting of money supply growth as a sort of excuse and political cover to raise rates to the highest in history. This sort of thing is always unpopular of course but there was at the time a broad consensus that slowing money growth was the right thing to do.
That consensus sprang from the work of 'conservative' economist Milton Friedman. Most will rememer him as the most lauded economist of the time. His main work, for which he go the so called Nobel Prize in economics was for his theory that inflation was TOTALLY a monetary phenomenon.
While probably true in the broadest sense there have been some interesting twists and turns concerning the theory. The main twist is that Freidman himself rejected his own theory about 4 years ago. Yes, that's right. Moneterism is dead, as declared by its own high priest.
Why is that. Well if you go look at the long term charts of the various M's you will see that starting in the mid 90s they exploded upwards. You also must know that inflation, as measured by the CPI and various other indexes has been tame to absent during the period.
That would seem to be all the proof necessary to bury the theory. Well it would but there is a form of inflation that is not recognized as inflation. It is a form of inflation that benefits the top rung. That is the inflation of financial assets. Think stocks. Other forms of financial assets have inflated as well. Real Estate has too but the government inflation numbers do a good job of masking the inflation of real estate, especially residential real estate.
So there was inflation during the doubling of the money supply over the last decade but it was inflation of assets. Now it is verbotten to even broach this idea in the mainstream. No, stocks and financial assets of all kinds and real estate have gone up because their 'value' has risen is the conventional wisdom.
Freidman himself never considered asset inflation as inflation after all so it's little wonder he was willing to abondon his theory. Besides, his main clients, Republicans and 'conservatives' have reaped gigantic rewards from the inflation of assets so it would be rather silly of him to point out that their newfound wealth was not the result of genius or hard work or the triumph of their ideology but rather plain old inflation. That's is what it has been afterall. Plain old inflation as the money growth has mostly gone into bidding up the prices of assets.
While jobs and income from jobs have been totally flat for several years now, a record only matched in modern times in the depression the conventional wisdom is that the 'economy' is doing OK. How is that? Because while there was a scare when the stock market swooned in the 2000 to 2002 period they have recovered and housing prices have marched relentlessly higher. So everyone who owns these assets feels wealthy.
In fact it could be said the we now have an asset based economy. EVERYTHING economic is now contingent upon the maintenence and further inflation of asset prices. The record setting Fed engineered plunge in interest rates starting in Jan 01 was aimed firstly at inflating the financial world. Yes, that inflation has engendered a worldwide spurt in growth,expecially in asia but that was a secondary result.
As everyone knows America is suffering huge trade and budget deficts. The best way to look at this is that we are consuming more than we can afford so we borrow in order to keep consuming. (Econ 102 explains, partially, why borrowing is the engine of monetary growth. Something I may try to get into in another post) The key to our willingness to borrow and spend is the feeling of 'wealth' engendered by the inflation of our assets. Stocks and financial assets for the elite and residential real estate for everyone else. The serial mortgage refi booms and the home equity borrowing boom has been the thing which has kept our consumption going thru the 'recession' of 01 02 and right on thru today
(There is additionally a self reinforcing cycle in all this. When assets prices inflate we can borrow using the assets as collateral. Then the borrowing goes into more buying of the inflating assets which continue to inflate so more borrowing is engendered, and so on and so on. This is espeically evident in residential real estate but plays out in the totality of the financial world as well)
It is the reason why things in aggregate appear not so bad despite the fact that the job/job income trends are at depression levels.
I'm running out of breath. I'll continue later if anyone cares to encourage me. The main point now is to understand that the stupendous monetary growth of the last decade has gone into inflating asset prices and that has lead to the perception that we are building wealth.
In fact we are not building wealth. If Adam Smith heard this story that inflated assets were wealth building he would retch. Inflation of assets as the main measure of wealth building is in fact an abomination of market, or so called 'free market' capitalism. Traditional capitalism recognized real cash flow profits and savings as the source of wealth building on a national scale, as in The Wealth of Nations. Real cash flow profits and savings in America are in the dumpster and the cognitive and ideological ju jitsu used to ignore this fact will someday be exposed as the lie that it is.