Challenges to Replication and Iteration in Field Experiments: Evidence from Two Direct Mail Shots | Zendy

Jake Bowers | Zendy; Nathaniel Higgins | Zendy; Dean Karlan | Zendy; Sarah Tulman | Zendy; Jonathan Zinman | Zendy

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Challenges to Replication and Iteration in Field Experiments: Evidence from Two Direct Mail Shots

Author(s) -

Jake Bowers,

Nathaniel Higgins,

Dean Karlan,

Sarah Tulman,

Jonathan Zinman

Publication year - 2017

Publication title -

american economic review

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 16.936

H-Index - 297

eISSN - 1944-7981

pISSN - 0002-8282

DOI - 10.1257/aer.p20171060

Subject(s) - replication (statistics) , context (archaeology) , direct mail , government (linguistics) , replicate , direct marketing , economics , field experiment , test (biology) , econometrics , marketing , advertising , public economics , business , statistics , mathematics , geography , biology , philosophy , paleontology , linguistics , archaeology

We conducted an experiment marketing microloans to farmers in the USA during Spring 2015 and found a simple direct mail letter increased borrowing from a government program. The subsequent spring, we built on this finding and enriched the design to test for information spillovers. The direct effect result did not replicate in the second year, thus lowering the likelihood that spillovers would be present and detectable. These results add to recent evidence on how (seemingly subtle) differences in context and treatment content affect consumer responses.

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