@article {644386,
	title = {How evolved psychological mechanisms empower cultural group selection},
	journal = {Behavioral and Brain Sciences},
	volume = {39},
	year = {2016},
	url = {http://journals.cambridge.org.ezp-prod1.hul.harvard.edu/action/displayAbstract?fromPage=online\&aid=10224984\&fulltextType=RA\&fileId=S0140525X15000138},
	author = {Henrich, J. and Boyd, R.}
}
