title: Play, animals, resources: the need for a rich (and challenging) comparative environment.
abstract: Van de Vliert proposes a comprehensive explanation for differences in "freedoms" in diverse human populations based on climate and monetary resources. This intriguing approach, though derived from an evolutionary view covering all species, is based exclusively on human populations. This anthropocentric lens is challenged by ways of testing Van de Vliert's thesis more generally using playfulness as a surrogate for freedom.
authors.affiliation: Department of Psychology, University of Tennessee, Knoxville, TN 37996-0900. gburghar@utk.edu http://web.utk.edu/~gburghar/
authors.forename: Gordon M
authors.initials: GM
authors.lastname: Burghardt
mesh_terms: D002980:Climate; D017753:Ecosystem; D005610:Freedom; D006801:Humans; D012959:Socioeconomic Factors