Comment on Theories on Theories
exasperation@lemmy.dbzer0.com 10 hours agoPlenty of medical science doesn’t lend itself well to double blind studies. In vivo infection models can’t ethically be tested with double blind studies, and can only be observed. Lots of medicine advances through observational studies, too, like almost anything relating to nutrition or lifestyle or trauma. There’s no double blind study on how survivable car accidents are.
Plus double blind studies themselves don’t necessarily have any kind of explanatory power (see the entire field of anesthesia where we know how much of each anesthetic it generally takes to put people under, but we don’t know the underlying mechanism it uses to make people go under). Or, for that matter, Tylenol (whose mechanism of action remains a mystery).
fossilesque@mander.xyz 10 hours ago
That’s just it, though. Outliers are treated fundamentally differently between them, they are treated as bugs in economics, but as features in medicine.
If a “universal” drug fails for a specific group, medicine views that outlier as a falsification that proves the rule is incomplete. They use the exception to fix the theory.
Foundational economics does the opposite: it treats axioms like “rational actors” as holy scripture, so when people don’t behave like the math says they should, the economists just dismiss them as “irrational” and keep the model exactly the same.
Even if we don’t know the mechanism behind Tylenol, we can still falsify whether or not it works. You can’t falsify a “rational actor” because the moment someone does something weird, you just move the goalposts. Medicine is trying to map the territory; foundational economics insists the map is right and the territory is just acting up.
exasperation@lemmy.dbzer0.com 7 hours ago
I don’t understand what you mean by this.
Let’s take for example a simple example of the outlier of the person who smokes a lot of cigarettes but outlives the person who doesn’t smoke. Does this break the model where smoking harms health and increases all cause mortality (which we know through epidemiological observation of deaths, which is not in any sense a double blind test)? Where does this observation fit into medicine?
Or take the example of a discontinuity regression in economics. A jurisdiction passes a law increasing the minimum wage above the market-clearing wage in that area, which shares a border with another jurisdiction that has a similar market clearing wage. Can we observe the differences on both sides of that border to see whether the minimum wage increase leads to an increase in unemployment? Yes, it’s just applied math at that point.
Where does behavioral economics fit into your ideas of how economics expects a rational actor? There are differences in behavior that have been measured by economists in different situations, and those are important ideas in economic behavior and observations. So why do you assume those models have been discarded in favor of some sort of doctrinal insistence that humans behave in a particular way?
And if you’re describing the reluctance of practitioners to abandon the core ideas of their models, or the core paradigms of their disciplines, I’d observe that you’re largely correct but wrong to assume it doesn’t happen in things that you’d probably call science, from medicine to meteorology to epidemiology. Things get overturned slowly, and sometimes these paradigm shifts meet a lot of resistance for an entire generation: phlogiston proponents slowly coming around on oxygen, cosmologists saying “fine I guess dark energy exists.”
The critiques you lob at economics are valid. I just think you under appreciate how much they apply to hard science, too.