Modern Money Theory (MMT) seems to confuse two groups of otherwise sympathetic economists. First there are those like Paul Krugman who are generally of the Keynesian persuasion and who like MMT’s “deficit owl” approach. I think Krugman would really like to stop worrying about the deficit so that he could advocate an “as much as it takes” approach to government spending. The problem is that he just cannot quite get a handle on the monetary operations that are required. Won’t government run out? What, is government going to create money “out of thin air”? Where will all the money come from?
He really doesn’t understand that “money” is key stroke records of debits and credits. He still thinks banks take in deposits and then lend them out. He starts to tear his hair out whenever someone tries to correct him on this. He’s wedded to the deposit multiplier idea he got from his Econ 101 textbook.
The other group that is otherwise sympathetic is the Post Keynesians. They understand banking. They know that “loans create deposits”. They know the “deposit multiplier” is actually a “divisor”, as “deposits create reserves”. (Not in any metaphysical sense but rather in the sense that an interest rate-targeting central bank always accommodates the demand for reserves.) However, they cannot understand how a sovereign government spends. Doesn’t it have to borrow the currency from private banks? Like Krugman, they argue that (given modern arrangements), government cannot spend by “keystrokes”.Economonitor — Great Leap Forward
So here’s an attempt to put the fears of Krugman and Post Keynesians to rest. There is a symmetry between bank lending and government spending.
MODERN MONEY THEORY: THE BASICS
L. Randall Wray | Professor of Economics, University of Missouri at Kansas City