It's the Recipient That Counts: Spending Money on Strong Social Ties Leads to Greater Happiness than Spending on Weak Social Ties Aknin, Lara B. ; Sandstrom, Gillian M. ; Dunn, Elizabeth W. ; Norton, Michael I. Abstract Publication: PLoS ONE Pub Date: February 2011 DOI: 10.1371/journal.pone.0017018 Bibcode: 2011PLoSO...617018A