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Do You Know That I Am Biased? An Experiment

Sandra Ludwig and Julia Nafziger

No 11/2007, Bonn Econ Discussion Papers from University of Bonn, Bonn Graduate School of Economics (BGSE)

Abstract: This experiment explores whether individuals know that other people are biased. We confirm that overestimation of abilities is a pervasive problem, but observe that most people are not aware of it, i.e. they think others are unbiased. We investigate several explanations for this result. As a first one, we discuss a possible unfamiliarity with the task and the subjects' inability to distinguish between random mistakes and a real bias. Second, we show how the relation between a subject's belief about others and his belief about himself might be driven by a false consensus effect or self-correction mechanism. Third, we identify a self-serving bias when comparing how a subject evaluates his own and other people's biases.

Keywords: Bias; Overconfidence; Beliefs; Experimental Economics; Self-Serving Bias (search for similar items in EconPapers)
JEL-codes: D83 C91 D01 (search for similar items in EconPapers)
Date: 2007
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