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Learning in the Household
Last registered on June 10, 2019

Pre-Trial

Trial Information
General Information
Title
Learning in the Household
RCT ID
AEARCTR-0004253
Initial registration date
May 29, 2019
Last updated
June 10, 2019 6:45 PM EDT
Location(s)

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Primary Investigator
Affiliation
Massachusetts Institute of Technology
Other Primary Investigator(s)
PI Affiliation
Massachusetts Institute of Technology
PI Affiliation
Harvard University
Additional Trial Information
Status
In development
Start date
2019-06-01
End date
2020-06-01
Secondary IDs
Abstract
We run lab-in-the-field experiments in India to study learning in a household setting and identify the factors that impede the efficient aggregation of information in households. We will ask couples to make a joint decision – guessing the color composition of an urn full of red and white balls – and give each spouse, separately and privately, a chance to learn information relevant to that decision (i.e., randomly sample balls from the urn). The couple is then asked to discuss and share information and provide a “joint” guess. We will analyze how each spouse’s private information and beliefs influence the final household guess under various treatment conditions.
External Link(s)
Registration Citation
Citation
Rao, Gautam, Matthew Ridley and Frank Schilbach. 2019. "Learning in the Household." AEA RCT Registry. June 10. https://doi.org/10.1257/rct.4253-1.0.
Former Citation
Rao, Gautam, Matthew Ridley and Frank Schilbach. 2019. "Learning in the Household." AEA RCT Registry. June 10. https://www.socialscienceregistry.org/trials/4253/history/47796.
Experimental Details
Interventions
Intervention(s)
We will ask couples to make a joint decision – guessing the color composition of an urn full of red and white balls – and give each spouse, separately and privately, a chance to learn information relevant to that decision (i.e., randomly sample balls from the urn). The couple is then asked to discuss and share information and provide a “joint” guess. We will analyze how each spouse’s private information and beliefs influence the final household guess under various treatment conditions.
Intervention Start Date
2019-06-01
Intervention End Date
2020-06-01
Primary Outcomes
Primary Outcomes (end points)
The expected payoff (i.e. accuracy) of guesses, calculated relative to a Bayesian benchmark; the relative weights that joint or individual guesses place on the husband’s and wife’s private information or guesses.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We will recruit both couples and pairs of individuals in Chennai, India. Each couple or pair will play several rounds of an experimental game in which their primary objective is to guess the number of red balls in an urn containing 20 balls, each of which is either red or white. Individuals start with a common prior, since they are truthfully informed that the number of red balls was randomly drawn from a known distribution.
Experimental Design Details
Not available
Randomization Method
Randomization is conducted using a random number generator in Stata
Randomization Unit
Individual/Couple level
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
400
Sample size: planned number of observations
400
Sample size (or number of clusters) by treatment arms
We do not have treatment arms as such. Each of the 400 couples will undergo 5 rounds of the experiment with potentially different treatments.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Committee on the Use of Humans as Experimental Subjects, MIT
IRB Approval Date
2018-11-13
IRB Approval Number
1810538700