Put Your Money Where your Butt Is: A Commitment Contract for Smoking Cessation (doi:10.7910/DVN/28273)

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Put Your Money Where your Butt Is: A Commitment Contract for Smoking Cessation

doi:10.7910/DVN/28273

Harvard Dataverse

2014-12-19

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Giné, Xavier; Karlan, Dean; Zinman, Jonathan, 2014, "Put Your Money Where your Butt Is: A Commitment Contract for Smoking Cessation", https://doi.org/10.7910/DVN/28273, Harvard Dataverse, V2

Put Your Money Where your Butt Is: A Commitment Contract for Smoking Cessation

doi:10.7910/DVN/28273

Giné, Xavier (The World Bank)

Karlan, Dean (Yale University)

Zinman, Jonathan (Dartmouth University)

2014

Harvard Dataverse

Innovations for Poverty Action

Research Transparency, Data Ethics, and Governance

2014-12-17

2014

https://doi.org/10.7910/DVN/28273

Social Sciences, Smoking cessation, Finance, Savings, Addictive behavior

This paper presents the results of a financial intervention in the form of savings accounts, of which the total funds will be returned if the holder of the account stops smoking, verified through urine samples. This is in order to test whether this type of financial incentive is a viable option towards the reduction of addictive behaviors. Three treatment arms for the project with one control group. The main intervention was the CARES savings product with deposit collection, where participants deposit a self-determined amount of money into the account, and the return of the full amount of the deposited funds was conditional on clients' smoking cessation tested using the NicCheck urine strip test for nicotine and cotinine. A NicCheck score of 0 (no exposure recent exposure) was accepted, while all others of a maximum of 15 (high exposure) were indicated as not passing. Deposit collection was done on a weekly basis by bank personnel. The second treatment arm was offered the CARES savings product, but without deposit collection, so clients had to go to a bank to make additional deposits. The CARES savings product required a minimum balance of 50 pesos, initially collected by field marketers, and did not yield any interest in order to discourage nonsmokers from opening the account because of the convenience of deposit collection services. The third treatment arm were one of four cue cards with graphic depictions of the negative health consequences of smoking. Six and twelve months after the initial marketing, the bank attempted to administer urine tests to all study subjects. CARES clients were required to take the test or automatically forfeit their deposit balance. Nonclients (including those assigned to cues and control groups) were paid 30 pesos for taking the six month test, and everyone in the sample was paid 30 pesos for taking the twelve month test.

2006-2010

Philippines

Island of Mindanao

Individuals

Smokers ages 18 or older

Surveys, administrative data, medical data (urine tests)

Green Bank, Inc.

Individuals aged 18 or older smoking outside in Butuan City and Ampayon targeted by Green Bank marketers to be offered inclusion in savings product.

In-person surveys, in-person medical tests (urine tests), administrative data

http://karlan.yale.edu/p/

<a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0</a>

Xavier, G., Karlan, D., and Zinman, K., 2010, "Put Your Money Where Your Butt Is: A Commitment Contract for Smoking Cessation." American Economic Journal: Applied Economics, 2(4): 213-35.

10.1257/app.2.4.213

Xavier, G., Karlan, D., and Zinman, K., 2010, "Put Your Money Where Your Butt Is: A Commitment Contract for Smoking Cessation." American Economic Journal: Applied Economics, 2(4): 213-35.

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ado files.zip

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Contains ado files for user-written commands needed to run code

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AEJ APP 2009-0213_Code.do

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Stata code

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cared_deposit_formerge.dta

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Stata dataset (created from cares_deposit.dta), used to generate Figures 1 and 2

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cares1yr_preanalysis_1.dta

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Stata dataset to produce Tables 1 through 5

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cares6m.combined3_preanalysis_1.dta

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Stata dataset to produce Appendix Table 2

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cares6m.combined4_preanalysis_1.dta

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Stata dataset to produce Appendix Table 1

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cares_deposit.dta

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Stata dataset used to generate Figures 1 and 2

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cares_deposit_final.dta

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Stata dataset (created from cares_deposit.dta), used to generate Figures 1 and 2

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Karlan - Smoking Cessation Dataverse files.zip

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Contains all files needed for replication (data, code, ado files) in the proper folder structure, as well as Readme files

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Readme - Karlan, Smoking Cessation.docx

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Readme document that accompanies the data, code, and survey files. Contains information on what is included in each file, folder structure needed to run code, Stata version used in replication and user-written commands included in code.

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