Researchers use practice rounds to familiarize participants with experimental auction mechanisms. We find a positive correlation between practice bids and bids submitted in later rounds. We consider three explanations for this correlation: a behavioral anchoring effect, a tendency for some...

Objective: To estimate differences in demand for cigarette packages with different packaging and health warning label formats. Methods: Adult smokers (n=404) in four states participated in experimental auctions. Participants bid on two of four experimental conditions, each involving a different...