title: The Ecology of Withdrawal. Commentary: The NEET and Hikikomori spectrum: Assessing the risks and consequences of becoming culturally marginalized.
authors.affiliation: Department of Psychology, Arizona State University Tempe, AZ, USA.
authors.forename: Michael E W
authors.initials: ME
authors.lastname: Varnum
authors.affiliation: Department of Psychology, Arizona State University Tempe, AZ, USA.
authors.forename: Jung Y
authors.initials: JY
authors.lastname: Kwon
keywords: Hikikomori; NEET; culture; evolution; life history theory