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When should the ask be a nudge? The effect of default amounts on charitable donations
Goswami, Indranil, (2016)
What goes around comes around : the effect of belief in karma on charitable donation behavior
Chen, Ming, (2022)
The martyrdom effect : when pain and effort increase prosocial contributions
Olivola, Christopher Y., (2013)
Using choice experiments for non-market valuation
Alpízar, Francisco, (2003)
Dont't tell me what to do, tell me who to follow! : field experiment evidence on voluntary donations
Alpízar, Francisco, (2010)
Are they watching you and does it matter? : evidence from a natural field experiment