Human behaviors and innovations often spread through social networks, yet the mechanisms driving this diffusion—information sharing or persuasion—remain debated. Using a large-scale randomized controlled trial in Uttar Pradesh, India, we examine these dynamics while promoting a newly introduced savings commitment product. Our findings reveal persuasion as the dominant channel: villages where persuasion was incentivized experienced significantly higher product sign-up and take-up rates, even without corresponding increases in financial literacy or product knowledge. Conversely, providing information alone had minimal impact. The combined intervention of persuasion and information delivered the highest outcomes, highlighting their complementary roles. These results highlight the critical importance of persuasion in driving behavioral change and suggest that information dissemination alone may often be insufficient for effective adoption and diffusion.
| Repository name | URI |
|---|---|
| Reproducible Research Repository (World Bank) | https://reproducibility.worldbank.org |
Paper exhibits were reproduced on a computer with the following specifications:
• OS: Windows 11 Enterprise, version 23H2
• Processor: Intel(R) Xeon(R) Platinum 8562Y+ 2.80GHz (2 processors)
• Memory available: 32 GB
• Software version: Stata (StataNow) 18.5 MP-Parallel Edition
Runtime: 12 hours
All data sources are publicly available and included in the reproducibility package.
| Author | Affiliation | |
|---|---|---|
| Marcel Fafchamps | Stanford University | fafchamps@stanford.edu |
| Asad Islam | Monash University | asadul.islam@monash.edu |
| Debayan Pakrashi | ISI Kolkata | pakrashide@gmail.com |
| Denni Tommasi | University of Bologna, World Bank | denni.tommasi@unibo.it |
2025-09-05
| Location | Code |
|---|---|
| India | IND |
The materials in the reproducibility packages are distributed as they were prepared by the staff of the International Bank for Reconstruction and Development/The World Bank. The findings, interpretations, and conclusions expressed in this event do not necessarily reflect the views of the World Bank, the Executive Directors of the World Bank, or the governments they represent. The World Bank does not guarantee the accuracy of the materials included in the reproducibility package.
| Name | URI |
|---|---|
| Modified BSD3 | https://opensource.org/license/bsd-3-clause/ |
| Name | Affiliation | |
|---|---|---|
| Denni Tommasi | University of Bologna, World Bank | denni.tommasi@unibo.it |
| Reproducibility WBG | World Bank | reproducibility@worldbank.org |
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Reproducibility WBG | DECDI | World Bank - Development Impact Department | Verification and preparation of metadata |
2025-09-05
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