Keep It Simple: A Field Experiment on Information Sharing among Strangers
SMS information campaigns are increasingly used for policy. A field experiment is conducted to study information sharing through mobile phone messages. Subjects are rural households in Mozambique who have access to mobile money. In the baseline intervention, subjects receive an SMS containing simple...
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| Published in | The World Bank economic review Vol. 36; no. 4; pp. 857 - 888 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
World Bank
01.11.2022
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0258-6770 1564-698X |
| DOI | 10.1093/wber/lhac016 |
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| Abstract | SMS information campaigns are increasingly used for policy. A field experiment is conducted to study information sharing through mobile phone messages. Subjects are rural households in Mozambique who have access to mobile money. In the baseline intervention, subjects receive an SMS containing simple instructions on how to redeem a voucher for mobile money. They can share this non-rival information with other exogenously assigned subjects unknown to them. Few participants redeem the voucher. They nonetheless share it with others and many share information about the voucher they do not use themselves. The voucher is shared more when no information is provided on the receiver. When partial information is provided, no evidence is found of more sharing with subjects who have similar characteristics. Treatments are introduced to increase the cost of sending a message, shame those who do not send the voucher to others, or allow subjects to appropriate the value of the voucher. All these treatments decrease information sharing. To encourage information diffusion among strangers, the best is to “keep it simple.” |
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| AbstractList | SMS information campaigns are increasingly used for policy. A field experiment is conducted to study information sharing through mobile phone messages. Subjects are rural households in Mozambique who have access to mobile money. In the baseline intervention, subjects receive an SMS containing simple instructions on how to redeem a voucher for mobile money. They can share this non-rival information with other exogenously assigned subjects unknown to them. Few participants redeem the voucher. They nonetheless share it with others and many share information about the voucher they do not use themselves. The voucher is shared more when no information is provided on the receiver. When partial information is provided, no evidence is found of more sharing with subjects who have similar characteristics. Treatments are introduced to increase the cost of sending a message, shame those who do not send the voucher to others, or allow subjects to appropriate the value of the voucher. All these treatments decrease information sharing. To encourage information diffusion among strangers, the best is to “keep it simple.” |
| Author | Fafchamps, Marcel Vicente, Pedro C Batista, Cátia |
| Author_xml | – sequence: 1 givenname: Cátia orcidid: 0000-0001-9057-0397 surname: Batista fullname: Batista, Cátia – sequence: 2 givenname: Marcel surname: Fafchamps fullname: Fafchamps, Marcel – sequence: 3 givenname: Pedro C surname: Vicente fullname: Vicente, Pedro C |
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| Keywords | NUDGING ANONYMITY MOBILE MONEY SHARED IDENTITY INFORMATION SMS INFORMATION CAMPAIGN |
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