The Fallacy of Composition

Have you ever thought about the incredible number of assumptions you make every day, subconsciously?

Before you go out the door in the morning, you assume the sun is up, the air is safe to breathe, and there will be coffee. As you head out the door, you assume the people you’ll interact with will behave in a predictable manner.

This is not always the case, but in general, people obey traffic laws, wait their turn, and pay for their morning coffee and donut. They do this because it is rational. Otherwise, we’d be living on a studio set of Mad Max. Acting rationally at the individual level benefits society as a whole.

Except not always… Remember this guy?

Angelo Mozilo

So relaxed and tan. This is Angelo Mozilo, former CEO of Countrywide Financial. In the mid-2000s he implored his mortgage originators to act in their own self-interest. Take more applications! Don’t worry about qualifications—nobody cares! More loans mean more fees, and we don’t even have to hold the loans—Wall Street will slice them up, package them, and sell them to investors. No risk! Just lots of fees for all of us to share. What’s not to love?

And then… the economy collapsed, triggered by a sea of bad mortgages and loan defaults.

That is called a fallacy of composition, where rational actions at an individual level become dangerous and destructive in the aggregate.

This week, my friend Lyric Hughes Hale and special guest Eric Huang of Taiwan share with us the details of what could be another massive fallacy of composition.