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Time as an Incentive in the Workplace
Last registered on July 11, 2016


Trial Information
General Information
Time as an Incentive in the Workplace
Initial registration date
July 11, 2016
Last updated
July 11, 2016 10:36 AM EDT
Primary Investigator
University of Cologne
Other Primary Investigator(s)
Additional Trial Information
In development
Start date
End date
Secondary IDs
This project introduces time as an incentive for performance. Depending on the treatment and the performance subjects can leave earlier. Treatments vary in the time and money domain. Importantly, the individual valuation of time (opportunity costs of time) is also elicited. Results can have important methodological implication for experimental economics and for settings outside the laboratory where it is possible to think about situations in which not only time incentives have advantages over monetary incentives, but also create different additional effects.
External Link(s)
Registration Citation
Vogelsang, Timo. 2016. "Time as an Incentive in the Workplace." AEA RCT Registry. July 11. https://doi.org/10.1257/rct.1397-1.0.
Former Citation
Vogelsang, Timo. 2016. "Time as an Incentive in the Workplace." AEA RCT Registry. July 11. http://www.socialscienceregistry.org/trials/1397/history/9350.
Experimental Details
Intervention Start Date
Intervention End Date
Primary Outcomes
Primary Outcomes (end points)
Number of solved tasks, avg. duration per task, avg. needed clicks per task, timepoint of internet usage, avg. duration of internet usage, avg. amount of internet usage, willigness to accept (WTA) for staying longer in the lab
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
The experiment consists of three main stages. In the first stage subjects have to state their willigness to accept (WTA) for staying 30 minutes in the lab. The second and third stages are working stages with the possibility to browse the internet as an outside option. Subjects receive a basic compensation for working. They further receive in the frist working phase an additional compensation which varies depending on the treatment (either in the monetary domain (more money) or the time domain (leaving earlier)).
Experimental Design Details
Treatments: Monetary Pay-for-Performance (MoneyP): For each correctly solved real-effort task the subjects receive an additional amount of money. Time Pay-for-Performance (TimeP): For each correctly solved real-effort task the subjects can leave the lab earlier during the second working phase. Monetary Fix Wage (MoneyF): Subjects receive a fixed monetary amount. Time Fix Wage (TimeF): Subjects receive a fixed time benefit (for leaving the lab earlier in the second working phase). Parametrization: Monetary Pay-for-Performance: €0.10 per solved task. Time Pay-for-Performance: 25 seconds per solved task. Time Fix Wage: 25 minutes. Money Fix Wage: €6. Parametrization is chosen in a way so that the avg. hourly wage is approx. the same.
Randomization Method
At first the random draw of the cabine number determines the room (two rooms are available) and with this also whether the compensation will be in monetary or time units. Then the computer randomly assign within each room the performance pay and the fix wage treatments.
Randomization Unit
Individual randomization into one of the four treatments. Randomization into treatments takes place within each session.
Was the treatment clustered?
Experiment Characteristics
Sample size: planned number of clusters
approx. 200 subjects
Sample size: planned number of observations
approx. 200 subjects
Sample size (or number of clusters) by treatment arms
approx. 50 subjects per treatment arm (MoneyP=50, TimeP=50, MoneyF=50, TimeF=50)
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB Name
IRB Approval Date
IRB Approval Number
Post Trial Information
Study Withdrawal
Is the intervention completed?
Is data collection complete?
Data Publication
Data Publication
Is public data available?
Program Files
Program Files
Reports, Papers & Other Materials
Relevant Paper(s)