The Child as Econometrician: A Rational Model of Preference Understanding in Children Lucas, Christopher G. ; Griffiths, Thomas L. ; Xu, Fei ; Fawcett, Christine ; Gopnik, Alison ; Kushnir, Tamar ; Markson, Lori ; Hu, Jane Abstract Publication: PLoS ONE Pub Date: March 2014 DOI: 10.1371/journal.pone.0092160 Bibcode: 2014PLoSO...992160L