BookYol

Concept

Playing Different Games

Playing different games is Morgan Housel's warning that investors with different goals and time horizons are not competing in the same contest, so a price or a move that makes sense for a short-term trader can be a costly mistake for someone saving for decades.

Housel uses the idea in The Psychology of Money (2020) to explain how bubbles inflate. A trader who plans to sell within days does not need a share to be worth its price over the next ten years; the price only has to rise a little more by tomorrow. In that game, buying at a high price can be perfectly rational. The damage begins when a long-term saver, who will hold for decades, sees those prices and those confident buyers and reads them as a signal of value. The saver is now taking cues from a player in a different game, with different rules and a different finish line. The same thing happens far from markets: a colleague rich enough to lose half of what he risks, a relative who needs the money next month, a commentator paid for attention rather than accuracy. Their choices may be reasonable for them and dangerous for you. Housel's remedy is to know your own game precisely and write it down: what you are investing for, over what horizon, and what you will ignore because it belongs to someone else's game. Few financial decisions protect you as well as that single sentence.

A real-life example

Oğuz, a logistics planner in Gaziantep, is saving for his children's education and a retirement thirty years away. When a colleague doubled his money in weeks on a share everyone at work was discussing, Oğuz nearly moved his 150,000 lira of savings into it. Then he asked what game his colleague was playing: daily trades, a plan to sell within the month, money he could afford to lose. Oğuz's game lasts thirty years. He left his monthly order alone.

How to use it

  1. 1Write your game in one sentence: what the money is for, when you will need it, and how deep a fall you can wait through.
  2. 2Before copying someone's financial move, ask what their time horizon is and how much they can afford to lose.
  3. 3Ignore prices and advice made for a shorter game than yours, however confident they sound.