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Gender Difference in Volunteer's Dilemma Game
Last registered on August 31, 2020

Pre-Trial

Trial Information
General Information
Title
Gender Difference in Volunteer's Dilemma Game
RCT ID
AEARCTR-0004176
Initial registration date
November 02, 2019
Last updated
August 31, 2020 1:07 PM EDT
Location(s)
Region
Primary Investigator
Affiliation
University of Pittsburgh
Other Primary Investigator(s)
PI Affiliation
Indian Institute of Management Bangalore
Additional Trial Information
Status
In development
Start date
2019-12-01
End date
2020-09-30
Secondary IDs
Abstract
Volunteering decisions in group settings often involve sacrificing one's part or some personal disadvantage for the benefit of the group. Babcock et al. (2017) show that compared to males, females volunteer more for low-promotability tasks. We extend their design to a laboratory based volunteering game with social recognition and study gender differences in volunteering. The aim of this paper is to examine whether the gender difference in volunteering is mitigated by i) positive social recognition, ii) negative social recognition and iii) both positive and negative social recognition. Our premise rests on the prior that males and females respond differently to positive and negative social recognition for low stake volunteering tasks.
External Link(s)
Registration Citation
Citation
Banerjee, Ritwik and Priyoma Mustafi. 2020. "Gender Difference in Volunteer's Dilemma Game." AEA RCT Registry. August 31. https://doi.org/10.1257/rct.4176-2.0.
Experimental Details
Interventions
Intervention(s)
Babcock et al. (2017) show women volunteer more for low promotability tasks and are also asked more often to do so. We examine if non-monetary incentives such as social recognition can close the gender gap.
Intervention Start Date
2019-12-01
Intervention End Date
2020-03-30
Primary Outcomes
Primary Outcomes (end points)
Probability of investing , probability of group investing
Primary Outcomes (explanation)
It is a binary variable which takes the value 1 if one invests in a round and 0 otherwise
Secondary Outcomes
Secondary Outcomes (end points)
Time taken to volunteer
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
The game is played for ten rounds each, in which the participants are randomly and anonymously assigned to groups of three. In each round, the participants are given anywhere between 45 to 90 seconds to decide whether they individually wish to volunteer or invest in a group account, on behalf of the group. They do not exactly know how much time has been allotted to their group. Incentive structure of the game is such that a group member is better off waiting for someone in his/her group to invest.
Our treatments differ in terms of the information given at the end of each period. In our baseline treatment, we give the participants no information about the investor. In the nudge treatment, we just display the player's neutral identity in the group to investigate the effect of a 'nudge'. In the next treatment, fictitious names of the investors are displayed on the participants screens.
Three additional treatments are designed to investigate how social recognition induces investing. Subjects are told that each group will be displayed the names of the investor along with a smiling emoji and publicly congratulated in the positive social recognition treatment. In the negative social recognition treatment, they are told that the names of the two non-investors will be displayed along with a frowning emoji. Finally, in the positive and negative social recognition treatment, both the names of the investor and non-investors are displayed with appropriate emojis. Likelihood of investing is compared across treatments.
Experimental Design Details
Randomization Method
Randomization done by software ztree (used for laboratory experiments)
Randomization Unit
Individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
0
Sample size: planned number of observations
600 subjects
Sample size (or number of clusters) by treatment arms
100 by each treatment arms
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
IRB Approval Date
IRB Approval Number
Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports, Papers & Other Materials
Relevant Paper(s)
REPORTS & OTHER MATERIALS