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Thoughts About the Evolution of Mainstream Macroeconomics Over the Last 40 Years (nber.org) 51

Abstract of a paper featured on NBER: This year marks the 40th anniversary of the NBER Macro Annual Conference, founded in 1986. This paper reviews the evolution of mainstream macroeconomics since then. It presents my views, informed by a survey of a number of researchers who have made important contributions to the field. I develop two main arguments.

The first is that, starting from strikingly different positions, there has been substantial convergence, in terms of methodology, architecture, and main mechanisms. Methodology: Explicit micro foundations, explicit treatment of distortions, with, at the same time, an increased willingness to deviate from rational expectations, neoclassical utility and profit maximization. Architecture: The wide acceptance of nominal rigidities as an essential distortion, although with mixed feelings. Mechanisms: The wide nature of the shocks to both the demand and the supply side.

The second is that this convergence has been, for the most part, good convergence, i.e. the creation of a generally accepted conceptual and analytical structure, a core to which additional distortions can be added, allowing for discussions and integration of new ideas and evidence, rather than fights about basic methodology. Not everything is right however, with too much emphasis on general equilibrium implications from the start, rather than, first, on partial equilibrium analysis of the phenomenon at hand.

Thoughts About the Evolution of Mainstream Macroeconomics Over the Last 40 Years

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  • Anyone else is concerned about economists that can't do simple math to figure out it's their 39th anniversary?
  • by Tx ( 96709 )

    Is he speaking English? I think I'm going to need a translation.

  • And we all lost. our time and some brain cells.

    -sort of like 'macro economics' over the past half century.
    • by shanen ( 462549 )

      Mod parent Funny, but the rich target has produced no official "Funny" yet...

      My own take is that Ricardo was right about "comparative advantage". That was several hundred years ago and I'm still waiting for an economist to earn a second "right" point. (time >> money)

  • In Plain English... (Score:3, Informative)

    by dark.nebulae ( 3950923 ) on Monday May 19, 2025 @10:47AM (#65387349)

    I asked ChatGPT to redo this really fugly summary they used here:

    The Evolution of Mainstream Macroeconomics (Plain English Version) The Big Picture

    This paper looks at how economists who study the entire economy (things like inflation, recessions, and unemployment) have changed their thinking over the last 40 years. The key idea: “Economists used to argue a lot about how to model the economy, but now they mostly agree on the basics — and that’s mostly a good thing.”

    1. Economists Used to Disagree a Lot — Now They're More Aligned

    Over time, economists have reached common ground in three main areas:

    Methodology (How they build models)

    • Start from how individuals and businesses behave ("microfoundations").
    • Include real-world imperfections like taxes, regulation, and irrational behavior.
    • Less focus on assuming people are always perfectly rational or predict the future accurately.

    Architecture (Structure of the models)

    • Most economists now agree that prices and wages don’t change instantly (this is called "nominal rigidity").
    • This helps explain real-world issues like booms and recessions.

    Mechanisms (What causes the economy to move)

    • Economists now accept that "shocks" (surprises) can affect both supply (production) and demand (spending).

    2. Why This Agreement Is Mostly Good

    • It gives economists a common foundation to build from.
    • Makes it easier to test new ideas and solve real problems.
    • Reduces endless debates over the basics of model-building.

    But There’s a Catch

    Sometimes economists try to model the whole economy at once (called "general equilibrium") when it might be smarter to just look at one part of it first ("partial equilibrium"). This can make things more complicated than necessary.

    TL;DR

    Over the last 40 years, economists have stopped fighting over how to model the economy and started agreeing on some key ideas. That’s helped the field grow, even if they sometimes overcomplicate things by trying to explain everything at once.

    • "Include real-world imperfections like taxes, regulation, and irrational behavior."

      People who believe this seem to believe these inputs do not affect the price of goods and services.

      Which is obviously incorrect. These inputs are not imperfections. They are part of the equation.

  • Nobody accuses medicine of being a waste of time because some people are still dying. Yet people make jokes about economics because it doesn't get everything right. There's every reason to believe that the 2008 recession would have been a 1930s level depression if economics hadn't progressed a lot since the 1930s. Let's impose reasonable expectations, and not dismiss all economic insights because they don't cure the disease easily or perfectly.

    • If the practice of medicine was demonstrably shortening lives, then your analogy with the priesthood of macroeconomics would be more apt.

      A hangdog Alan Greenspan was forced to admit in front of Congress and the world that the underpinnings of the philosophy he'd used to prop up the worst financial excesses was utter bunk. Economists have provided cover for a system that has consistently screwed the majority of the population for generations, and we see the results in reduced life expectancies, growing ho
      • Across most of the world - especially in poorer nations - the adoption of the economic policies you so despise has led to unprecedented reductions in real poverty. The most obvious example of this is China, but India has done pretty well as well after abandoning socialist myths and allowing capitalism to flourish.

        'Since 1990, more than 1 billion people have been lifted out of poverty. The decline in global extreme poverty was largely driven by robust economic growth in East Asia and Pacific and South Asia.'

        • The most obvious example of this is China

          Communist China? Is this some kind of elaborate joke, or are you trying to send a secret signal so a team can come rescue you?

    • The problem with (macro)economics is that it is presented as truth (aided by layering a shitload of jargon on top of what is stated), but that due to it being incredibly difficult to do rigorous economic research a lot of it is just conjecture.

      Said otherwise: if economic predictions and models had to be fitted with error bars and 95% confidence intervals, they would cover almost every graph entirely. By comparison, medical research is ridiculously reliable.

      Macroeconomics does not deserve the respect that it

    • There's every reason to believe that the 2008 recession would have been a 1930s level depression if economics hadn't progressed a lot since the 1930s.

      Fortunately USA 2008 didn't have Herbert Hoover or FDR making things worse. The rest of the world suffered a Depression in the 1930s. It was Great Depression in the US.

  • Word salad on this, this is incomprehensible gibberish. Maybe that's what economics is all about.

  • You don't need this word salad, economics papers that don't even mention the increase in money supply aren't worth the bytes they're stored in
  • by reanjr ( 588767 ) on Monday May 19, 2025 @11:36AM (#65387539) Homepage

    Well, the last 40 years came after we dropped Keynesian economics due to its inability to explain stagflation. Now, after revisiting Keynesian economics during the plague, we find ourselves heading towards stagflation.

    Have we evolved? Like, really?

  • Well this is certainly a wordy way of saying, "Sure, we are helping fuck everything up but everyone should marvel at the efficiency of this downward spiral!"

  • MMT, heterodox and Post-Keynesians is where the serious analysis is happening and where smart money is looking to for predictive power.

  • Should be the only thing economists are now working on AND THEY ARE NOT. Just a few youtubers like David Shapiro really digging into it: https://www.youtube.com/watch?... [youtube.com]
  • by groobly ( 6155920 ) on Monday May 19, 2025 @12:37PM (#65387785)

    It appears that this post is about obfuscation of the English language.

  • by thrasher thetic ( 4566717 ) on Monday May 19, 2025 @02:28PM (#65388141)

    The MMT and Keynesian economic theorists have been miserable failures who persistently justify their failures by claiming the problems would be worse without them. Its theoretical backing for every governments desire to print and spend money to their black little hearts content.

    I suppose the only good news is that it can't last forever.

    • All of this discussion is just pie in the sky nonsense. The reality is that the availability of money is condensing into fewer and fewer hands. If your economic theories can assist in understanding and preventing that, then cool, if not, this is not the time for dreamy theoretical economic landscapes.

      We have the minister of education talking about having a-one in the classroom for godsakes. I am uncertain if the folks in charge of the economy have a better grasp of money flows than the person in charge of e

  • science for 40 years - suckers.

You are lost in the Swamps of Despair.

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