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Social scientists often consider temporal stability when assessing a construct and its
measures, but whether behavioral biases display such stability is relatively unknown. We
estimate stability for 17 biases, using lab-style elicitations in online surveys repeated three
years apart. Biases are stable in the aggregate and at least moderately stable within-person.
Within-person stability estimates tend to meet or exceed those for standard quantitative
measures of patience and risk aversion, despite various pieces of evidence suggesting that
classical measurement error substantially attenuates them. We consider implications for
micro and macro modeling with potentially behavioral agents, and for survey and
elicitation design.
