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Preference misperceptions and intertemporal choices
Last registered on March 28, 2021

Pre-Trial

Trial Information
General Information
Title
Preference misperceptions and intertemporal choices
RCT ID
AEARCTR-0007153
Initial registration date
February 10, 2021
Last updated
March 28, 2021 1:10 PM EDT
Location(s)

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Primary Investigator
Affiliation
University of Zurich
Other Primary Investigator(s)
Additional Trial Information
Status
In development
Start date
2021-03-29
End date
2021-06-30
Secondary IDs
Abstract
This project investigates how preference misperceptions confound the identification of time preferences from state-varying choices. To this end, I run an online longitudinal experiment with multiple sessions in a stylized environment with unpleasant effort tasks, where participants at different stages of mandatory work can forgo payoffs to avoid (or equivalently, require compensation for) additional work at a different point in time.
External Link(s)
Registration Citation
Citation
Zhang, Sili. 2021. "Preference misperceptions and intertemporal choices." AEA RCT Registry. March 28. https://doi.org/10.1257/rct.7153-2.0.
Experimental Details
Interventions
Intervention(s)
4 between-subject treatments: Good-Good; Good-Bad; Bad-Good; Bad-Bad. Details are explained in the attachment.
Intervention Start Date
2021-03-29
Intervention End Date
2021-06-30
Primary Outcomes
Primary Outcomes (end points)
Self-reported prediction of tiredness at the end of Part 1 and at end of Part 2 (elicited in Part 1);
WTA choices for one additional task (Choice 1 and Choice 2 elicited in Part 1)
Primary Outcomes (explanation)
Details are explained in the attachment.
Secondary Outcomes
Secondary Outcomes (end points)
Self-reported prediction of tiredness at the end of Part 2 (elicited in Part 2);
WTA choices for one additional task (Choice 3 elicited in Part 2)
Secondary Outcomes (explanation)
Details are explained in the attachment.
Experimental Design
Experimental Design
I use an online longitudinal experiment to demonstrate the identification problem of time preferences by showing how variation in decision states produces state-dependent behaviors in different time horizons. Motivated by the paradigm in Augenblick and Rabin (2018), the experimental setting consists of unpleasant effort tasks and valuation choices of these tasks on top. The decision state is varied by the cumulated fatigue/tiredness from the tasks at different stages of mandatory work.
Experimental Design Details
Not available
Randomization Method
randomization will be done by a computer
Randomization Unit
individual level
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
n/a
Sample size: planned number of observations
450
Sample size (or number of clusters) by treatment arms
Treatments where Part 1 is in a good state (Good-Good; Good-Bad): 225 subjects in total. The decision state in Part 2 will be assigned randomly at the beginning of Part 2.
Treatments where Part 1 is in a bad state (Bad-Good; Bad-Bad): 225 subjects in total. The decision state in Part 2 will be assigned randomly at the beginning of Part 2.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
Details are explained in the attachment.
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
IRB Approval Date
IRB Approval Number
Analysis Plan

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