In part two of this series I quoted Keynes:
...we can draw the line between "money" and "debts" at whatever point is most convenient for handling a particular problem.
I'm with Keynes on this one, and apart from those who claim all money is debt.
You can think of the horizontal line in my graphic as a spectrum of possible divisions between money and debt. And you can "draw the line between 'money' and 'debts'" at any convenient point between zero and 100%.
My view is that in the years since the end of World War Two, we have pushed that line closer and closer to the "All Credit" end of the spectrum, until we had so much debt and so little non-credit-money that we could no longer afford our debt.
To handle our "particular problem" we must push that line back toward money, and away from the reliance on credit.
I think there is a sort of Laffer curve for that spectrum, a curve that shows economic performance as a function of the reliance on credit.
With too little credit in use, there is clear opportunity to expand credit-use and reap an era of golden-age growth. With too much credit-in-use, the factor cost of money competes with wages and with profit, and times are hard.
The curve I used for this graph may look familiar. If you don't know what it is, you can download the Excel file or open the GoogleDocs version to find out. :)

