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posted by mrpg on Wednesday August 30 2017, @03:42AM   Printer-friendly
from the A-Star-To-Guide-Us dept.

When Christopher Nolan was promoting his previous film Interstellar, he made the casual observation that "Take a field like economics for example. [Unlike physics] you have real material things and it can't predict anything. It's always wrong." There is a lot more truth in that statement than most academic economists would like to admit.

[...] several famous Keynesian and neo-classical economists, including Paul Romer, [...] criticized the "Mathiness in the Theory of Economic Growth" and [...] Paul Krugman. In this instance, though, Krugman is mostly correct observing that "As I see it, the economics profession went astray because economists, as a group, mistook beauty, clad in impressive-looking mathematics, for truth."

[...] But more fundamentally, as Austrian economist Frank Shostak notes, "In the natural sciences, a laboratory experiment can isolate various elements and their movements. There is no equivalent in the discipline of economics. The employment of econometrics and econometric model-building is an attempt to produce a laboratory where controlled experiments can be conducted."

The result is that economic forecasts are usually just wrong."

"[Levinovitz] approvingly quotes one economist saying "The interest of the profession is in pursuing its analysis in a language that's inaccessible to laypeople and even some economists. What we've done is monopolise this kind of expertise.[...] that gives us power.""

[...] because economics models are mostly useless and cannot predict the future with any sort of certainty, then centrally directing an economy would be effectively like flying blind. The failure of economic models to pan out is simply more proof of the pretense of knowledge. And it's not more knowledge that we need, it's more humility. The humility to know that "wise" bureaucrats are not the best at directing a market "

Economists Are the New Astrologers


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  • (Score: 2) by maxwell demon on Thursday August 31 2017, @05:55AM

    by maxwell demon (1608) on Thursday August 31 2017, @05:55AM (#561982) Journal

    Of course, even science relies on an axiom that must be taken on faith. This axiom is that observation follows reality, that is, what you can observe is actually real.

    Only if you take the realist viewpoint (that science tells you something about the properties of the world). If you take the instrumentalist viewpoint (that science just tells us something about the properties of our observations), you don't need that axiom.

    --
    The Tao of math: The numbers you can count are not the real numbers.
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