INET Blog

On the Money View: Perry Mehrling on Keynes's Comeback

On the Money View, Perry Mehrling reviews Lance Taylor's book Maynard's Revenge: The Collapse of Free Market Economics.

Mehrling suggests that Keynes had it right: "The economy itself is a constantly changing and evolving entity, which means that individuals face epistemic problems of uncertainty, not just risk. In a world like that, historico-institutional methods provide a kind of knowledge that mathematico-statistical methods simply cannot, knowledge to inform individual decisions but also social policy."

Mehrling agrees with Taylor's suggestion that the economic crisis proved the need for more economists that are willing to consider this approach. ""Keynes remains an attractive exemplar of how to do macroeconomics, and not just because of his repeated deep insights into the problems of his own day," Mehrling writes.

And yet Keynes's views may have difffered some from what Taylor writes in the book - Mehrling calls the book, in part "Taylor's Revenge" on macroeconomics and finance.

Click Here to Read the Full Post on Money View

 

INET Goes to Paris

INET Executive Director Robert Johnson delivered a keynote address at the OECD Forum in Paris today. In anticipation of the conference, Johnson wrote an op-ed for French newspaper Les Echos on reforming the financial sector.

Quoting Nobel Laureate and INET Advisory Board member Joseph Stiglitz, Johnson reminds readers that, “Academic economists played a big role in causing the crisis. Their models were overly simplified, distorted, and left out the most important aspects.”

“Tired orthodox economic theories led to the creation of bad maps of financial behavior,” Johnson writes, and this led us to a financial crisis. What’s needed now is new economic thinking that works for real people and the real economy.

Click here to read the op-ed

What are economists for, anyway?

In the wake of INET’s conference in Berlin, Executive Director Robert Johnson poses a profound question during this interview with the German foundation Stiftverband. Who does the economist serve: powerful interests or society?

The answer seems clear-cut. Economists today primarily serve the needs of powerful interests at the expense of society in general.

But why?

To answer this, Johnson peals back the surface of overt corruption to explain how the problem goes far beyond that. It was not that economists were all on the take leading up to the global financial crisis, Johnson says, but that those whose visions aligned with powerful financial interests “were used as marketing vehicles, and they were not adequately skeptical as scientists of what the flaws in their vision might be.”

“The world is always uncertain,” Johnson continues, “so when people become anxious, they want the expert to tell them what is going to happen.” The problem is that these experts don’t shoulder much of the risk of being wrong – or of selling confidence when humility is called for - and it is society that ultimately pays the full price of their deception.

Yet many economists don’t even see the problem. They don’t know – or don’t want to know – that they are selling snake oil and that the abstract precision of their finely tuned mathematical models doesn’t hold up to the many contingencies of the real world.

In this regard, “economists are the victim of the Thirty Years War,” Johnson says. “Economists now worship at the altar of abstract theory which was the product of the fear and anxiety that followed the Thirty Years War 350 years ago. It’s time to reexamine our methods very fundamentally.”

The problem is exemplified by David Collander’s study of the economics profession, Johnson says. Collander found that of economics Ph.D. students “85% say they need to know a lot about mathematics, while only 13% say they need to know anything about the economy in order to become an economist,“ Johnson notes.

To remedy this deficiency and prevent the influential and misguided advice of economists from helping to cause another financial crisis, Johnson calls for a change in the way economics is taught.

First, the basic paradigm through which the economics profession sees itself and presents itself to society needs to change. “Rather than teaching economics 101 as an indoctrination in method, they should teach it as a course in philosophy of science where the subject is economics and its assumptions, and the tradeoffs and the flaws as well as the strengths are explored on behalf of the student,” Johnson says.

Second, economics must lose its fascination with deduction and reincorporate context into the profession. “Understanding the context of institutions, understanding economic history, and particularly the history of economic thought (where the subject is economic thinking embedded in the real context of the problems and vested interests of the day, the various challenges, the state of technology), would help people to develop a more humble and realistic of what economic thinking is all about,” Johnson says.

These changes will make it much more difficult for economists to forget that economics really is about “politics, politics, and politics,” Johnson says. “At the core, economics is about politics and about power, and the question for the economists is whose power are you going to serve as an expert.”

To Johnson, avoiding the methodological and professional hubris of the recent past will help the economics profession and its constituents remain ever mindful of the central question they face: “Are you going to serve institutions of power or the people more generally?”

Economists. What – and who - are they good for?

Click Here to Watch The Video

Economics Is Not Math

Mathematician Michael Edesess has a dose of reality for economists.

“Economics pretends to be mathematics, but it is not mathematics,” he says. “There is a major difference. No mathematician uses a term in a formula, or a statement of a theorem, unless that term has first been defined with excruciating precision.”

And while economists may think they’ve defined terms like “aggregate demand” or “economic growth,” Edesess suggests they talk to a mathematician. “Economists may think they’ve defined them, but they should try reading some real mathematics to see what a precise definition truly is,” he says.  “The economists, I think, leave the work of definition to be inferred from the way the terms are used in the formulas. This, to me, is weird.”

Using a recent blogosphere debate between Steve Keen and Paul Krugman as a jumping off point, Edesess offers a mathematician’s insight into some of the key problems with economic theory and economic debate. The lack of precise definitions produces some distinct symptoms, as the Krugman-Keen argument shows: “The amazing thing is that, in this debate, one side or the other will present what appears to be a very simple proof that they are right – and yet the other side is not persuaded in the least.”

He traces this problem back to what he suggests is the cause: “The source of all the confusion, in my view, is the idea that if you can’t measure something and model it mathematically, it has no meaning. There is too much mathematics used and expected in economics, and too much of it is of poor quality and distorts the ideas it is meant to undergird.”

This mathematical hubris is at the heart of the “the critical state of economic theory has been exacerbated by the financial crisis” – a crisis that was in part created by the overreliance on precise but not accurate mathematical models used as if the real world were made up of mere numbers.

This reliance on mathematics can be traced back to an economics that has falsely aspired to the certainty of a mathematical science like physics (which, in reality, is far less well-defined and precise than economists seem to believe). But, as Edesess also suggests in relation to a part of the Keen-Krugman debate, “causality runs both ways.”

The desire of the business community and society for the illusion of certainty has created significant short-term incentives for economists to provide this false reassurance. But the long-term costs were well demonstrated by the 2008 financial crisis and its aftermath, which we’re still dealing with. Economists too often ignored the real world – and key issues like inequality, financial instability, and innovation – in favor of precise but not accurate numbers, like, as Edesess notes, aggregate demand or GDP.

If economists want to remain relevant they have to return mathematics and the precision it offers to its proper place in the discipline. Math should be a tool that economists use, not an end goal in and of itself.  And economists must focus on addressing humanity and morals and ethical dilemmas, which lie at the heart of it all.

To Read Edesses' Blog Post Click Here

Joseph Stiglitz, Anya Schiffrin Celebrate Book Releases

Last week, INET gathered with important members of the economics community to celebrate the publication of new books by Joseph Stiglitz, a member of INET’s Advisory Board, and his wife, Anya Schiffrin.

Joseph Stiglitz Read more

How to Kill Financial Regulation…and the Global Economy

“While it's incredibly difficult to get a regulatory reform passed, it's far easier – and more profitable to politicians – to kill it.

So says Matt Taibbi, in his audacious new article in Rolling Stone called, “How Wall Street Killed Financial Reform.” In it, Taibbi examines how cash from the financial industry swamped elected officials and regulators and thwarted any efforts to create meaningful financial reform. Read more

[INET Spotlight] Edward Kane: New Economic Thinking Tackles Financial Risk

You can’t control what you don’t understand. Just take a look at the financial sector.

Despite the trauma of the 2008 financial crisis, the opacity of the financial sector and the oblique way decisions about financial risk are handled by institutions have remained central problems for the global economy. With this in mind, INET Grantee Edward Kane offers some new thinking on how to measure systemic risk in the financial sector.  Read more

Regulation? What Regulation?

Being the smartest guys in the room doesn’t prevent you from making bad decisions.

This is the lesson Paul Krugman offers in his recent NY Times column. “Even supposedly smart bankers must be sharply limited in the kinds of risk they’re allowed to take on,” Krugman writes.

The key to solving this conundrum, in Krugman’s mind, is smarter regulation. Read more

INET Spotlight: Jamie Galbraith

What has been driving the worldwide growth of inequality, both within and between countries? Jamie Galbraith has an idea: “Surely financial policies strike me as a very plausible culprit.” Read more

Sometimes it takes a little overreaching to remind us that the future isn’t certain

And as the ship is still sinking both literally and figuratively, an intrepid Australian billionaire has given us a timely reminder. Recently, billionaire mining-magnate Clive Palmer announced his intention to build the Titanic II, which will be a modernized replica of the original Titanic – because we all know that went well. Read more

How to Save a Sinking Ship?

That was the question at the “Future of Europe” panel at INET Berlin. German International Broadcaster Deustsche Welle offers a look behind the scenes at INET’s recent Berlin conference. The video segment - titled “Economists Planning a Revolution” - asks, “What will the new solution be for Europe?” Read more

NH Media Features INET Imperfect Knowledge Economics Project

Human beings aren’t mechanical. And mechanistic economic theories can’t account for uncertainty or political instability and individual creativity. Read more

INET Spotlight: Yanis Varoufakis

What to do with Europe? Pick one: federalize or impose austerity.

Or ask Yanis Varoufakis, who picks neither. The professor of economic theory at the University of Athens offers a modest proposal for helping to tackle this Euro Zone conundrum. Don’t worry about federalizing Europe now and don’t cling to the current course of imposing austerity that no one really believes will work. Read more

A Berlin Consensus?

The Washington Consensus is dead.

So says Andrew Sheng in this op-ed for Project Syndicate. Writing about INET’s recent Berlin conference, where Sheng was also a speaker, Sheng notes, “Almost everyone agreed that the old paradigm of neoclassical economics was broken.” But what comes next wasn’t as clear. Read more