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L. Randall Wray - Modern Money Theory for Beginners
St. Francis College Economics Professors launched their first Economics Week with three days of guest speakers, and student research. Professor L. Randall Wray, professor of economics at Bard College, discussed "Modern Money Theory for Beginners" on April 6, 2018.
JackRiddler wrote:Interview with Wray.
Mark Blyth is the Eastman Professor of Political Economy at The Watson Institute for International and Public Affairs of Brown University. Before becoming an academic Blyth has been variously, a stand-up comedian, a chef, and a funk bass player. Realizing that such pursuits where long options at best, he finished his PhD. in political science at Columbia University in 1999. He then joined the Johns Hopkins University before moving to Brown University in 2009. His research focuses upon the causes of stability and change in the economy and why people continue to believe stupid economic ideas despite buckets of evidence to the contrary. The power of economic ideas is a common theme in Blyth’s work, as seen in his recent award winning Book Austerity: The History of a Dangerous Idea (New York: Oxford University Press 2015) and in his new projects on the economic legacies of the baby boomers and the politics of low growth. When not writing, he still likes to cook, and he recently has become a serious cocktail mixologist, which eases the pain of the stuff he writes about.
Mark Blyth
@MkBlyth
I've never tweeted out a Krugman column until now. This one is really quite good. It summarizes a lot of what I think about how we think about the economy just now. So it must be right
The MV=Py Myth
Cullen Roche - 07/28/2015
I’m pulling this one out of the AMA section because it’s a common question I see. Reader Oshe asked about the Equation of Exchange otherwise known as MV=Py, where M is the quantity of money, P is the price level, Y is total output and V is velocity, or the number of times that a dollar is used to purchased goods and services. He asks how useful [is] this equation and if its assumptions are valid. I don’t think so.
First off, we should be clear that the Equation of Exchange isn’t used by many economists these days. The old school Monetarists who relied on this sort of thinking are largely gone. This is the result of many erroneous assumptions in the theory that the empirical data simply doesn’t support.
That said, we can’t deny MV=Py. After all, this is just a tautology. You can’t debunk it. But you can poke serious holes in the assumptions that go into it. So, what are some of those erroneous assumptions?
1) MV = Py is only useful if V is constant. In this world V = Py/M. And if V isn’t constant then it can basically be fudged to mean whatever you want. So, if P is 1, Y is 1,000 and M is 10 then V has to equal 100. If you were an old school Monetarist then you would say that doubling M will double P because P=MV/y or P=((20*100)/1,000)=2. But what if P doesn’t double for some reason? Well, then you can just say V went down. In other words, the demand for money increased. It’s like voodoo economics. The equation can mean whatever you want it to. That’s not very helpful.
2) The bigger problem in the Equation of Exchange is that it doesn’t define money accurately. “Money” in this model generally refers to the Monetary Base or Central Bank money. So, if you were applying an old school Monetarist sort of view then you’d have used this equation to conclude that QE would cause sky high inflation. In fact, we saw this sort of analysis all over the place in recent years. But the problem is that “money” is a really complex thing in a modern economy. It is not merely Monetary Base, cash, coins or even deposits. Money, as I’ve described, exists on a scale of moneyness and different things meet the properties of money in different instances. So, trying to peg “money” as Central Bank money is misleading at best and totally erroneous at worst.
In short, the Equation of Exchange is a very limited description of how the quantity of money actually impacts the economy and prices. And that’s primarily due to some broad theoretical assumptions that make it a lot less useful than many people think.
https://www.pragcap.com/the-mvpy-myth/
Do You Worry About the USA Going Bankrupt?
The US government is the issuer of the US dollar within a system in which it has a free floating currency and no foreign denominated debt. This means that the US government cannot be forced to default on its liabilities. There is no reason for the US government to have to worry about “running out of money”. The government could, however, be susceptible to causing high inflation. One of the primary reasons why the US government does not have to worry about solvency is because it can tax such an enormously productive economy. But if it were to establish policies that reduce the overall output or cause high inflation then the US dollar could begin to decline in value thereby causing a reduction in living standards.
https://www.pragcap.com/frequently-asked-questions/
As the issuer of currency, the government need not have a solvency constraint as there might be for a household or business. In this regard, one must be careful comparing the federal government to a household because the federal government has no solvency constraint (i.e., there’s no such thing as the federal government “running out of money” as it can always call on the Central Bank to serve as agent of the government to create money for its own spending needs)... The federal government’s true constraint is never solvency, but inflation and foreign currency risk.
What’s your Opinion on Government Spending & Taxation?
Economists and pundits often talk about spending and taxes as if they should always be this or that, but I think the world is much more complex than that. In a general sense I am a traditional Keynesian and I believe the government should run deficits during recessions and either small deficits or surpluses during expansions. But each environment is its own unique situation and requires its own analysis so it’s impossible to paint too broadly here as it simplifies what is really very complex situations.
From a budget perspective a tax cut is the same as a spending increase so much of this debate is political. But it’s important to understand the details nonetheless. The govt can “print” notes, coins, reserves and issues t-bonds. So in that regard it’s best to think of the govt as an important facilitator of liquidity and an issuer of some kinds of money. We call these portions of the money supply “outside money” because they are created outside of the private sector.
But most govt spending is taking bank deposits (inside money because it is created INSIDE the private sector by private banks) and recycling them through the economy. So govt spending can be really useful when the economy chokes up because they eliminate the paradox of thrift in essence by creating a flow of funds (see here for more on this). So yes, most govt spending is just a circular flow taking from the private sector and redistributing it. So, contrary to popular opinion, fiscal policy doesn’t actually increase the money supply. It just redistributes it.
But deficit spending involves an important component in that it adds net financial assets through bond issuance which can make the pvt sector more liquid in various ways. That is, when the govt spends it procures funds from the private sector and recycles it into someone else’s account. But it also credits the account of the bond buyer with a t-bond which adds a net financial asset to the private sector.
I generally prefer tax cuts over spending increases, but I am not ideological here. It’s just that spending has a tendency to be poorly allocated so I generally prefer stimulus that allows the people to decide how they want to spend their money. But I am certainly not against government spending, especially if it’s wisely implemented.
https://www.pragcap.com/frequently-asked-questions/
In many market based systems such as the USA, the money supply is essentially privatized and controlled by private banks that compete to create loans which create deposits (money). Contrary to popular opinion, governments in such a system do not directly control the money supply nor do they create most of the money.
In today’s electronic money system most money exists as a record of account on spreadsheets as a result of the accounting relationship that created the money through the loan creation process.
over 90% of the money supply is created by private banks.
"Skimming the comments section it does sound like it's especially difficult to get folks to separate the "truths" about currency & debt from the "opinions" about social policy."
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