Friday , May 3 2024
Home / Mike Norman Economics / Implicit assumptions in Econ 101 made explicit — Jason Smith

Implicit assumptions in Econ 101 made explicit — Jason Smith

Summary:
Econ 101 assumes a lot of things — from the existence of a market and a medium of exchange, to being in an approximately stable macroeconomy that's near equilibrium, to the rates of change of supply and demand in response to each other, to simply the existence of a large number of agents.This is usually fine — introductory physics classes often assume you're in a gravitational field, near thermodynamic equilibrium, or even a small cosmological constant such that condensed states of matter exist. Econ 101 is trying to teach students about the world in which they live, not an abstract one where an economy might not exist.The problem comes when you forget these assumptions or try to pretend they don't exist. A lot of 'Economism' (per James Kwak's book) or '101ism' (see Noah Smith) comes from

Topics:
Mike Norman considers the following as important:

This could be interesting, too:

NewDealdemocrat writes The snooze-a-than in jobless claims continues; what I am looking for in tomorrow’s jobs report

Bill Haskell writes Monthly payments could get thousands of homeless people off the streets

Angry Bear writes A Doctor at Cigna Said Her Bosses Pressured Her to Review Patients’ Cases Too Quickly

Steve Roth writes How Did Under-40s Get So Much Richer During Covid?

Econ 101 assumes a lot of things — from the existence of a market and a medium of exchange, to being in an approximately stable macroeconomy that's near equilibrium, to the rates of change of supply and demand in response to each other, to simply the existence of a large number of agents.

This is usually fine — introductory physics classes often assume you're in a gravitational field, near thermodynamic equilibrium, or even a small cosmological constant such that condensed states of matter exist. Econ 101 is trying to teach students about the world in which they live, not an abstract one where an economy might not exist.

The problem comes when you forget these assumptions or try to pretend they don't exist. A lot of 'Economism' (per James Kwak's book) or '101ism' (see Noah Smith) comes from not recognizing the conclusions people drawn from Econ 101 are dependent on many background assumptions that may or may not be valid in any particular case.

Additionally, when you forget the assumptions you lose understanding of model scope (see here, here, or here). You start applying a model where it doesn't apply. You start thinking that people who don't think it applies are dumb. You start thinking Econ 101 is the only possible description of supply and demand. It's basic Econ 101! Demand curves slope down [7]! That's not a supply curve!

Information Transfer Economics
Implicit assumptions in Econ 101 made explicit
Jason Smith
Mike Norman
Mike Norman is an economist and veteran trader whose career has spanned over 30 years on Wall Street. He is a former member and trader on the CME, NYMEX, COMEX and NYFE and he managed money for one of the largest hedge funds and ran a prop trading desk for Credit Suisse.

Leave a Reply

Your email address will not be published. Required fields are marked *