goodhart's law - Google Search

Skip to main content Accessibility help Accessibility feedback AI Mode All Images Videos News Forums Shopping More Tools Search Results AI Overview Goodhart's Law states that "when a measure becomes a target, it ceases to be a good measure". Coined by economist Charles Goodhart in 1975, it means that when a metric is used to reward performance, people manipulate the metric, destroying its value as an indicator of true quality or progress.  Wikipedia  +2 Key Aspects of Goodhart’s Law The Core Concept: When you turn a proxy measurement (like test scores) into the goal itself (teaching to the test), the measurement stops accurately representing the actual objective (learning). Gaming the System: It highlights that people tend to optimize for the metric to get rewards, leading to "unintended consequences" or "gaming". Origin: The concept emerged from 1970s monetary policy studies, where setting specific targets for monetary growth led to changes in banking behavior, rendering the targets i

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