| http://www.w3.org/ns/prov#value | - or the welfare of others ??? ??? ??? bystander effect the tendency for any given bystander to be less likely to give aid if other bystanders are present ??? ??? ??? social exchange theory the theory that our social behavior is an exchange process, the aim of which is to maximize benefits and minimize costs ??? ??? ??? reciprocity norm an expectation that people will help, not hurt, those who have
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