Principles: Life and Work

by Ray Dalio

So Ross and I worked to build out an “error log” in the trading department. From then on, anytime there was any kind of bad outcome (a trade wasn’t executed, we paid significantly higher transaction costs than expected, etc.), the traders would make a record of it and we would follow up. As we consistently tracked and addressed those issues, our trade execution machine continually improved.

Same as COE process at Amazon