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Field
Last Published
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Before
March 21, 2018 11:05 AM
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After
March 21, 2018 11:34 AM
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Field
Data Collection Complete
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Before
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After
Yes
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Field
Final Sample Size: Number of Clusters (Unit of Randomization)
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Before
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After
2,774 respondents
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Field
Was attrition correlated with treatment status?
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Before
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After
No
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Field
Final Sample Size: Total Number of Observations
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Before
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After
2,800
1,004 In full sample
1,770 In Single-visit study
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Field
Final Sample Size (or Number of Clusters) by Treatment Arms
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Before
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After
Note: Not all respondents are included in all treatment samples
Savings Interventions: Saving Box = 370, Bank Account = 120, Controls = 514
Wallet Intervention: Wallet = 400, Controls = 604
Betting Info: Info = 576, Controls = 382
Lumpy Good Prime: Prime = 658, Control = 625, Both = 520
Budgeting Exercise Prime: Treat= 203, Control = 495
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Field
Data Collection Completion Date
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Before
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After
July 14, 2016
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Field
Intervention (Public)
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Before
Two randomized interventions will be implemented. The first will target ex-ante mental accounting of sports betting expenditures. The second will provide information on betting performance to randomly selected study participants.
In addition, two randomized primes will be embedded in the endline survey followed by a measurement of betting demand. The first prime will help to identify if betting demand is driven by demand for liquidity in pursuit of lumpy goods. The second will isolate whether betting demand is driven by hot states tied to sports excitement.
Quasi-experimental methods will be utilized to examine what expenses betting crowds out among bettors as well as how wins are used. These, methods will exploit naturally occurring variation in the international football schedule as well as baseline dimensions of heterogeneity among the study population.
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After
Two randomized interventions will be implemented. The first will target ex-ante mental accounting of sports betting expenditures. The second will provide information on betting performance to randomly selected study participants.
In addition, two randomized primes will be embedded in the endline survey followed by a measurement of betting demand. The first prime will help to identify if betting demand is driven by demand for liquidity in pursuit of lumpy goods. The second will isolate whether betting demand is driven by hot states tied to sports excitement.
In the final round of data collection, an additional randomized prime was included that centered on budgeting for saving. Randomized budgeting exercises were conducted so that the effect of positive or negative updated perceptions of saving ability on betting demand could be measured.
Quasi-experimental methods will be utilized to examine what expenses betting crowds out among bettors as well as how wins are used. These, methods will exploit naturally occurring variation in the international football schedule as well as baseline dimensions of heterogeneity among the study population.
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Field
Planned Number of Clusters
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Before
800
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After
Budget improvements lead this to increase to a total of 2,774
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Field
Planned Number of Observations
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Before
800 individuals
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After
An increased budget allowed this number to increase to 1,004 for the full study.
An additional 1,770 were included in an add-on single visit study.
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