From very early on, whenever I took a position in the markets, I wrote down the criteria I used to make my decision. Then, when I closed out a trade,… - Ray Dalio

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From very early on, whenever I took a position in the markets, I wrote down the criteria I used to make my decision. Then, when I closed out a trade, I could reflect on how well these criteria had worked. It occurred to me that if I wrote those criteria into formulas (now more fashionably called algorithms) and then ran historical data through them, I could test how well my rules would have worked in the past. Here’s how it worked in practice: I would start out with my intuitions as I always did, but I would express them logically, as decision-making criteria, and capture them in a systematic way, creating a mental map of what I would do in each particular situation. Then I would run historical data through the systems to see how my decision would have performed in the past and, depending upon the results, modify the decision rules appropriately.

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About Ray Dalio

Raymond Thomas Dalio (born August 8, 1949) is an American investor, billionaire, author, and hedge fund manager, who founded Bridgewater Associates in 1971.

Biography information from Wikiquote

Also Known As

Alternative Names: Raymond Dalio Raymond Thomas Dalio
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Additional quotes by Ray Dalio

d. In designing your organization, remember that the 5-Step Process is the path to success and that different people are good at different steps. Assign specific people to do each of these steps based on their natural inclinations. For example, the big-picture visionary should be responsible for goal setting, the taste tester should be assigned the job of identifying and not tolerating problems, the logical detective who doesn’t mind probing people should be the diagnoser, the imaginative designer should craft the plan to make the improvements, and the reliable taskmaster should make sure the plan gets executed. Of course, some people can do more than one of these things — generally people do two or three well. Virtually nobody can do them all well. A team should consist of people with all of these abilities and they should know who is responsible for which steps.

Some people go through life collecting all kinds of observations and opinions like pocket lint, instead of just keeping what they need. They have “detail anxiety,” worrying about unimportant things.

New is overvalued relative to great. For example, when choosing which movie to watch or what book to read, are you drawn to proven classics or the newest big thing? In my opinion, it is smarter to choose the great over the new.

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