Category Archives: Science and the scientific method

Richard Alford: If War Is Too Important To Be Left To The Generals, Isn’t Economic Policy Too Important To Be Left To Economists?

By Richard Alford, a former economist at the New York Fed. Since then, he has worked in the financial industry as a trading floor economist and strategist on both the sell side and the buy side.

Apologies to both Clemenceau (Prime Minister of France 1917-1920) and General Jack D. Ripper (Dr. Strangelove 1964)

The recent crisis and continuing economic and financial dislocations has led many to question the usefulness of the current macroeconomic paradigm, if not economics more generally. Raghuram Rajan, whose paper, “Has Financial Development made the World Riskier,” was summarily dismissed at the Fed Jackson Hole Conference in 2005, has recently posted a piece titled “Why Did Economists Not Foresee the Crisis?” In this piece, Rajan rejects three popular explanations for the failure of economics and economic policy, i.e. the absence of “models that could account for the behavior”, “ideology”, and “corruption”. Rajan offers alternative explanation(s): “I (Rajan) would argue that three factors largely explain our (economists) collective failure: specialization, the difficulty of forecasting, and the disengagement of much of the profession from the real world.” The logical conclusion of Rajan’s explanation(s) is that to avoid future crises, the role of economists, or at least academic economists, in the policy formulation process should be reduced. More troubling yet for economists, including Rajan, is some recent work by Frydman and Goldberg which argues that current economic models are inherently flawed.

Rajan dismisses the argument that economics lacked relevant models. He cites the fact that academic economists have studied and modeled many of the factors that contributed to the crisis. Rajan does, however, cite the compartmentalization of economics which leaves macroeconomists ignorant of findings in other sub-disciplines of economics.

In Rajan’s view, the inability to forecast accurately reflects shortcomings in the current model. All models of the economy abstract from the complexities of the economy and financial system. Models are simplifications of realty. Hence the models are incorrect. (We will return to this point later.) The only questions are how large and costly will the model-driven errors be.

Observers should not be surprised by the fact that the models employed by economists contained simplifying assumptions. However, they should be disturbed by the recent performance of policymakers. They ought to ask the question: why did economists remain wedded to their model despite the growth of all the macro-economically important economic and financial imbalances and unsustainabilities that existed in the years prior to the crisis?

Doug Smith: Shock Therapy For Economics, Part 1

By Douglas K. Smith, author of On Value and Values: Thinking Differently About We In An Age Of Me

In “Economics In Crisis”, professor Brad DeLong notes:

The most interesting moment at a recent conference held in Bretton Woods … came when Financial Times columnist Martin Wolf (asked) Larry Summers, “[Doesn’t] what has happened in the past few years simply suggest that [academic] economists did not understand what was going on?”

DeLong agreed with Summers’ response: “the problem is that there is so much that is “distracting, confusing, and problem-denying in…the first year course in most PhD programs.” As a result, even though “economics knows a fair amount,” it “has forgotten a fair amount that is relevant, and it has been distracted by an enormous amount.” DeLong then goes on to call for serious change in what economics departments do and teach.

In Part 2 of this post, I’m going to address the realities of ‘serious change’; and, in that context, what is troubling for INET about Summers’ presence at the recent Bretton Woods gathering. I’ll do this from my experience in leading and guiding real change as well as by contrasting INET with another, smaller, and more nascent effort called Econ4.

For now, though, let’s put aside the serious lack of self-respect in paying any attention at all to a world historical failure like Summers (Why is this arrogant sophist even on anyone’s C list, let alone A list? Why isn’t Summers wearing sack cloth and rolling in ashes?). Instead, let’s respond to DeLong’s ‘fessing up to the crisis in economics:

Gas From Fracking More Damaging to Climate Than Coal?

I’m pretty amazed that no one looked into the greenhouse gas impact of fracking until now. One of the big rationales for fracking, which is already controversial due to reports of damage to aquifers, is that it was abundant in North America and also produces comparatively little in the way of carbon emissions.

The problem, per a study soon to be published by Cornell University, is fracking results in the release of methane, one of the most potent greenhouse gases, apparently enough to undercut the claims that it is relatively “clean”.

Is Nuclear Power Worth the Risk?

One of the interesting features during the Fukushima reactor crisis were the fistfights that broke out in comments between the defenders of nuclear power and the opponents. The boosters argued that the worst case scenario problems were overblown, both in terms of estimation of the odds of occurrence and the likely consequences. The critics contended that nuclear power was not economical ex massive subsidies, that there was no “safe” method of waste disposal, and that nuclear plants were always subject to corners-cutting, both in design and operation, so the ongoing hazards were greater than they appeared.

Reader Crocodile Chuck passed along a story from the Bulletin of Atomic Scientists, “The Lessons of Fukushima“, by anthropologist Hugh Gusterson. Here is the key section:

US Faces Substantial Obstacles to Increasing Rare Earths Production

Reader James S. highlighted a useful article at the MIT Technology Review, “Can the U.S. Rare-Earth Industry Rebound?” Our only quibble to this solid piece is its summary, which underplays some critical aspects of the article: The U.S. has plenty of the metals that are critical to many green-energy technologies, but engineering and R&D expertise […]

Amar Bhide on the Stalinization of Finance

Full disclosure: I’ve known Amar Bhide for roughly 25 years (we both worked on the Citibank account at McKinsey, albeit never on the same project) and although we correspond only occasionally, I continue to regard his as a particularly keen observer and original thinker. He was briefly a proprietary trader, then an associate professor at […]

Alford: What Kind of Science Should Economics Be When It Grows Up?

By Richard Alford, a former economist at the New York Fed. Since then, he has worked in the financial industry as a trading floor economist and strategist on both the sell side and the buy side. As far as the laws of mathematics refer to reality, they are not certain, and as far as they […]

Hopelessly optimistic techies

If only it was that easy. First sentence: “Pick up a piece of text and start reading and it usually becomes clear pretty quickly whether you’re reading a nonfictional news story or a fictional novel.” They lost me right there. Hat tip to Alea.

How Medical Suppliers Block Innovation, Elevate Costs

Reader Francois T highlighted a story at Washington Monthly that I recommend highly to readers. It illustrates how the intersection of corporate pursuit of profit and regulatory backfires can produce tidy oligopolies that pursue rent-seeking behavior with impunity. From his e-mail: A well-intentioned move by Congress in 1986, followed by another one in 1996 converted […]

Big Pharma Research Cost Defense of High Drug Prices Debunked in Study

Readers may know I have perilous little sympathy for Big Pharma. The industry too often wraps itself in the mantle of science, in particular, claiming its needs its high profits and hence high prices to support its research and development efforts. In fact, it spends more on marketing than on R&D (and perilous few industries […]