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Author Joris Luyendijk: Economics Is Not a Science (theguardian.com)

The Real Dr John writes: A Nobel prize in economics, awarded this year to Angus Deaton, implies that the human world operates much like the physical world: that it can be described and understood in neutral terms, and that it lends itself to modeling, like chemical reactions or the movement of the stars. It creates the impression that economists are not in the business of constructing inherently imperfect theories, but of discovering timeless truths. In 1994 economists Myron Scholes and Robert Merton, with their work on derivatives, seemed to have hit on a formula that yielded a safe but lucrative trading strategy. In 1997 they were awarded the Nobel prize in economics. A year later, Long-Term Capital Management lost $4.6bn (£3bn) in less than four months; a bailout was required to avert the threat to the global financial system.

15 of 375 comments (clear)

  1. It should be obvious by The+Real+Dr+John · · Score: 5, Insightful

    Economics is not a science. It is a study of human behavior like Psychology, and as the article points out, it has heavy political overtones. There was no Nobel Prize in Economics until 1969. Maybe it is time to retire that particular prize.

    --
    A brain is a terrible thing to waste... Mind? That's debatable.
    1. Re:It should be obvious by khallow · · Score: 1, Insightful

      Astrology is a systematic, empirical study of the relationship between the alignment of planetary bodies and the observable traits and behavior of humans.

      No, it's not.

    2. Re:It should be obvious by Anonymous Coward · · Score: 3, Insightful

      Economics is a huge field, encompassing mathematics, experimental science, and other methodologies.

      Most papers in biology aren't reproducible, either. There's plenty of bad science and improper application of theory to go around in academia. Although I think economics is especially prone to bad methodologies and poor application, largely because it seems more accessible than it really is. Neither the public nor scholars are sufficiently skeptical and rigorous in their treatment of economics.

      The irony is that this fact is reflected in how casually people dismiss the field of economics. Maybe if people understood the limitations to modern scholarship, and how much hype there is in many fields, economics wouldn't look so bad.

      I would also point out that medicine as practiced by most physicians is not a science either. They use the fruits of science, but their field is based on an entirely different method of knowledge acquisition and application. Yet we don't regularly fault doctors for being "unscientific". Nonethleless there's plenty of science undergirding modern medicine, and plenty of physicians increasingly using scientific methodologies to improve their practice. Notably, these days most Nobel Prizes in Physiology or Medicine are awarded not to M.Ds, but to Ph.Ds for their discovery of physiological mechanisms.

      LIkewise, the Nobel Prize in Economics (which we all understand is a recent creation not in Nobel's original trust) don't go out to random people. They tend to be awarded to economists who's theory was solidly grounded in mathematics, not for the punditry and application you are so often exposed to in the media. You should actually read the works. It's fascinating stuff. But it also shows how huge the gulf still is from theory to application. Not unlike as with physiology and medicine.

      Also, you've failed to explain why human behavior, in both the particular and the aggregate, isn't governed by natural laws. Psychology has rightly earned a bad reputation for poor science. But the reason why Freud is so famous is because he was one of the first people to posit that human behavior was grounded in the physical world, is susceptible to rigorous description using scientific methodologies, generate theories based on those ideas, and create a protocol for applying them. Before Freud few people had done all of those things. Apparently not even you have made that _enormous_ leap in thinking.

  2. People who think economics is not a science... by phantomfive · · Score: 4, Insightful

    People who think economics is not a science usually have no understanding of economics. The author, for example, uses examples of economists (and non-economists) who failed to predict what direction the market would go. This is like saying, "Physics is not science because we still don't have FTL travel. Fail."

    Economics is a science, and it has a useful body of knowledge. MV = PQ is among the most tested theories in science. Gresham's law. The business cycle. All other things equal, an increase in supply will reduce prices. The biggest problem of economics isn't the lack of "hardness," it's the difficulty of running experiments (you can't re-run the depression six hundred times), so eliminating variables is difficult.

    Anyone who thinks economics is the art of predicting the stock market, will be confused, like the author of this article.

    --
    "First they came for the slanderers and i said nothing."
    1. Re:People who think economics is not a science... by Anonymous Coward · · Score: 2, Insightful

      Economics is a science, and it has a useful body of knowledge. MV = PQ is among the most tested theories in science.

      Your other points aside, MV=PQ is not a "tested theory", but rather an identity based on the mere definitions of the words, particularly the velocity V. You don't get much credit for that, in my book.

    2. Re:People who think economics is not a science... by phantomfive · · Score: 3, Insightful

      It's not sceince if you never do any experiments.

      That's the same argument against climate science, right? "You can't run CO2 experiments on multiple earths, because we only have one of them."

      The reality though, is that both climate science and economics do run experiments. They can't run every experiment they'd like to, but that's a problem with every field of science.

      --
      "First they came for the slanderers and i said nothing."
  3. Re: Weep for humanity. by ArmoredDragon · · Score: 2, Insightful

    This times a million... Economics is much more akin to religion the science. Economist are like the high priests of ancient times.

    If this is the case, (economics being religious in nature) then the government would have no business setting rules and regulations that impact the US economy. Church and state first amendment issues aside, if the economy is really so unpredictable, then nothing they do can reliably influence it in the ways that they intend.

    deflation is bad (its bad for some actors but its a huge boon for the majority)

    Not at all. One thing that is constant in most economies is that the majority of people are borrowers.

    Suppose you borrow some money to start a new business or buy a house, then suppose right afterwards that money you owe is now worth more than it was when you borrowed it. If it's worth more, then suddenly you're going to find that you're earning less (because after all, people value their money more so they pay less for the same service, whereas in the past they would have paid more for it.) Now guess what happens? You effectively owe more money than you originally borrowed, and we're not even counting interest yet. When we count interest, things get worse, because now the interest rate you've agreed to is suddenly more burdensome. Deflation is also bad for the lenders as well in many cases, because they often have borrowed money themselves.

    In fact, the last time the US saw deflation was a period we now refer to as The Great Depression.

  4. Re: Weep for humanity. by Austerity+Empowers · · Score: 3, Insightful

    Economics is a social "science". Because it involves money, it feels more quantitative and objective, like an actual science. But it is a social science, arbitrary numbers have been assigned to ill defined metrics, and a delusion is formed. Perhaps those arbitrary assignments are the result of a real competitive process, left to anneal for a period of time, but that's just a further level of self-deception. We cling to these things individually because it is the best we've got socially, but at no level in the universe can you establish the value of an orange at X resources/unit, it's therefore impossible to build any kind of universal truth around a system that is fundamentally based on that sort of value assignment.

    So when the talking heads start talking about economics, and making predictions and saying the sky is falling if {such and such}, it is ok to laugh and walk away. We'll make it work or we won't and it'll change.

  5. Art by BenBoy · · Score: 2, Insightful

    Economics/Econometrics is a science, it's swindling that's an art.

  6. Re: Weep for humanity. by JesseMcDonald · · Score: 3, Insightful

    In fact, the last time the US saw deflation was a period we now refer to as The Great Depression.

    But not because of the deflation. The cause of the Depression was a widespread credit contraction, following an illusory boom—actually malinvestment, encouraged and masked by inflation—which resulted in a "house of cards": lots of investment profit on paper with nothing real to back it up. When the bills came due and people tried to pull "their" money out, they suddenly discovered that they didn't have nearly as much money as they thought; their savings accounts consisted mostly of IOUs from bankrupt banks. That was the cause, both of the deflation and the Depression. Deflation was merely a side-effect.

    In other cases where deflation has been observed internationally, it has not been correlated with anything like the American Great Depression.

    --
    "The state is that great fiction by which everyone tries to live at the expense of everyone else." - Bastiat
  7. Re: Weep for humanity. by Anonymous Coward · · Score: 2, Insightful

    Care to elaborate?

    He is saying that it is only "science" if it is easy or if we already know all the answers. Since he doesn't understand economics, and is too lazy to learn, it can't be science.

    The fundamental for a "science" in the English language sense is that it should make statements which are potentially falsifiable. Experiment should rule. The problem with Economics is that the theory of Economics is affected by economics its self. For example, take the grandparent's statement

    deflation is bad

    This is actually true, at least now. If everybody knows there will be deflation then they know that if they hold on to their money it will be worth more in future. This encourages the flow of money to stop and gradually kills all economic activity. However, what if we go back to a world where nobody knows that deflation is bad, or even better, nobody is even aware that deflation is going on. In this case there will be no problem since nobody will realise that they should hold onto their money to take advantage of deflation.

    More generally, if you come up with a theory to predict economic behavior perfectly then that theory will be used to make its self invalid!

  8. Re: Weep for humanity. by Anonymous Coward · · Score: 2, Insightful

    Everyone knows that when it comes to electronics, next year's model is going to be better/faster/more bang for the buck than this years' model

    But it won't be cheaper, and there's opportunity cost to time so, in the end, if you need a computer now you'll buy it now, otherwise you won't buy it because of what you said.

    The same applies to money. Deflation incentivizes saving and disincentivizes investment. If people don't have that much money to begin with that might be OK, but when people begin to hoard money THEN you have a problem because it's a positive feedback: the more people hoards money, the greater the deflation; the greater the deflation, the higher is the return expected from investment. In the end, investment stops (if your money grows 20% annually just by sitting in a box, why risk it in a 4% business or bond?). Of course, basic spending has to keep going, but investment is essential to economy. If investment stops, economy stops. Want examples? The financial crisis of 2007-2008, that's what happens when the agents can't find financing (i.e.: banks or other agents investing in their business).

    What people need to understand is that money has value when you spend it, and the only purpose of money is being spent: a dollar in a box is worth nothing, a dollar gains value when you exchange it by a loaf of bread. If there isn't enough money to finance the economic activity someone has to put more in the markets or business begin to close. If you make a type of money that punishes spending and stimulates hoarding, you are shooting yourself in a foot.

  9. Re: Weep for humanity. by Anonymous Coward · · Score: 3, Insightful

    Here's the example that disproves the claim: Everyone knows that when it comes to electronics, next year's model is going to be better/faster/more bang for the buck than this years' model, but the electronics industry isn't starving to death because of everyone sitting on the sidelines and refusing to buy devices because they'll get more for their money in the future.

    It does no such thing, Yes, everyone does know, but some people need something now, and so buy it now. Pre-announcing has actually been shown to effect sales, just ask Adam Osbourne:

    * https://en.wikipedia.org/wiki/Osborne_effect

    Or perhaps ask Pebble and/or Motorola about their sales numbers when the Apple Watch was announced.

    Inflation benefits governments and other profligate borrowers. Deflation benefits savers (and everyone else, to a lesser extent.)

    Yeah, like people with mortgages. As for savers, have you looked at the savings rate over the last few decades (at least in North America)?

  10. Re: Weep for humanity. by Anonymous Coward · · Score: 1, Insightful

    Inflation benefits governments and other profligate borrowers. Deflation benefits savers (and everyone else, to a lesser extent.)

    -jcr

    Yep, which is why controlled inflation is good.

    Saving your money is bad for the economy as it doesn't add value to the world. Borrowing money in order to do something that does add value by contrast is good.

  11. Re: Weep for humanity. by Carewolf · · Score: 3, Insightful

    Inflation benefits governments and other profligate borrowers. Deflation benefits savers (and everyone else, to a lesser extent.)

    Precisely this. For my part, this fairly obvious fact is highly likely to account for why inflation is never allowed to stop. Cynical? You bet.

    You know 99% of people are not 1%ers right? That means they owe more than they own so benefitting from inflation and even the rich don't worry about inflation because they invest and investments follow inflation. Only idiots with money in mattresses are hurt by inflation.