Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/340790 
Year of Publication: 
2025
Citation: 
[Journal:] Experimental Economics [ISSN:] 1573-6938 [Volume:] 28 [Issue:] 4 [Publisher:] Cambridge University Press [Place:] Cambridge [Year:] 2025 [Pages:] 900-909
Publisher: 
Cambridge University Press, Cambridge
Abstract: 
While almost all charities rely on a set of donor appreciation strategies, their effectiveness for the success of fundraising campaigns is underresearched. Through two preregistered field studies conducted in collaboration with a leading German opera house (N = 10,000), we explore the significance of expressing gratitude and examine two different approaches to doing so. Our first study investigates the impact of a 'thank you in advance' statement in fundraising letters, a common strategy among fundraisers. In the second study, we explore the effectiveness of handwritten thankyou postcards versus printed postcards, shedding light on the roles of personalization and handwriting in donor appeals. Our findings challenge conventional wisdom, revealing that neither 'thank you in advance' nor handwritten thank you notes significantly affect donor contributions.
Subjects: 
charitable giving
donations
field experiments
thank you notes
solicitation letters
JEL: 
C93
D64
D12
D91
Persistent Identifier of the first edition: 
Data set: 
Creative Commons License: 
cc-by Logo
Document Type: 
Article
Document Version: 
Published Version

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