Less Is More, Even in Joint Evaluation

Christopher she of the university of chicago asked people to price sets of dinner ware offered in a clearance sale. She called the resulting pattern less is more by removing 16 items from set a seven of them intact, its value improved. Shes finding was replicated by the experimental economist john liszt in a real market for baseball cards. He auctioned sets of ten high value cards and identical sets to which three cards of modest value were added. The larger sets were valued more than the smaller ones in joint valuation, but less in single valuation.