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Randomization to treatment failure in experimental auctions: The value of data from training rounds

Briz, Teresa and Drichoutis, Andreas C. and Nayga, Rodolfo M. (2014): Randomization to treatment failure in experimental auctions: The value of data from training rounds.

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Abstract

In the experimental auctions literature it is common practice to train the potentially unfamiliar subjects in the auction procedure by conducting a few training (often hypothetical) auctions. Data from these practice auctions are rarely reported in scientific papers. We argue that valuable information can be conveyed by looking at data coming from the training rounds of experimental auctions. As a case study, we use data from an experiment that seeks to elaborate on the mediating role of mood states on projection bias. Following a mood induction procedure, subjects are found to bid more under negative mood (as compared to positive mood) for products that are delivered in the future but bid less under negative mood for products that are delivered in present time. We show that if we had neglected insights gained from the training auction data, we would not have been able to detect a failure of randomization to treatment.

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