Ask for a pledge or promised commitment to donate (a particular amount, or in general) before making the *actual* ask requiring the actual commitment of money.

Alternative tool name:

Tool variation:

Category: Choice architecture, size/nature of ask

Sub-category:

Relevant theories: Cognitive dissonance

Type of evidence: Field-exp-charity

Evidence strength (ad hoc assessment): 3

GWWC_pledge, TLYCS_pledge, The Giving Pledge (billionaires), Founders' Pledge, REG-pledge

Prevalence:

• Promises undone: How committed pledges impact donations to charity, Full text

• papers

Contributors David Reinstein