Creating AI Coworkers

Last registered on July 22, 2026

Pre-Trial

Trial Information

General Information

Title
Creating AI Coworkers
RCT ID
AEARCTR-0019166
Initial registration date
July 14, 2026

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
July 22, 2026, 7:59 AM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

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Primary Investigator

Affiliation
UCLA

Other Primary Investigator(s)

PI Affiliation
Harvard Business School

Additional Trial Information

Status
On going
Start date
2026-07-13
End date
2027-07-01
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
A large consulting firm is conducting an experiment with its employees and will share the resulting data with us so that we can study the treatment effects.

In brief, employees will have the opportunity to create and train their own AI coworkers: AI agents trained specifically on an employee’s knowledge. The main treatment arm randomizes incentives: half of the employees receive credit for the AI coworkers they create through recognition, visibility, and promotion opportunities. A secondary, cooperative treatment arm randomizes whether the company combines similar AI coworkers.

External Link(s)

Registration Citation

Citation
Cullen, Zoe and Ricardo Perez-Truglia. 2026. "Creating AI Coworkers." AEA RCT Registry. July 22. https://doi.org/10.1257/rct.19166-1.0
Experimental Details

Interventions

Intervention(s)
A large consulting firm is conducting an experiment with its employees and will share the resulting data with us so that we can study the treatment effects.

In brief, employees will have the opportunity to create and train their own AI coworkers: AI agents trained specifically on an employee’s knowledge.

The main treatment arm provides incentives: employees receive credit for the AI coworkers they create through recognition, visibility, and promotion opportunities. A secondary, cooperative treatment arm randomizes whether the company combines similar AI coworkers.
Intervention Start Date
2026-07-13
Intervention End Date
2026-08-06

Primary Outcomes

Primary Outcomes (end points)
The main outcome of interest is whether the employee signs up to create an AI coworker. This outcome in measured in two ways via a survey: as an unconditional decision and as a decision that can be contingent on the number of similar coworkers who also create an AI coworker. The conditional decisions will allow us to disentangle strategic complementarities.

We may also be able to obtain a measure of intensity of interest based on whether employees who sign up go on to complete the intake form required to initiate the AI coworker creation process, as well as the time and effort they spend on that form.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
At the end of the survey, we ask employees questions about the oversight and control they would want to have in place for their AI Coworker, including who would ideally have access.

Along the process to creating an AI Coworker, employees invest time in training and supplying data the AI Coworker knowledge.  Training and data supply will provide corroborating measures of our primary endpoints.
Secondary Outcomes (explanation)
Career concerns can lead workers to invest less in their AI Coworker and also lead employees to limit access to their AI Coworker when given the option. Our incentives tied to AI Coworker performance can counteract these career concerns and lead to greater knowledge sharing.

Experimental Design

Experimental Design
The main treatment arm randomizes subjects into one of the following two groups with equal probability:

- Treatment: Employees can receive credit for the AI coworkers they create through recognition and career advancement internally, and IP they can take with them if they leave the company. They are informed about this credit in the same survey in which they decide whether to sign up.
- Control: Employees are not eligible for these incentives, nor are they informed that the incentives exist.

The hypothesis is that the provision of credit will be a strong enough incentive to persuade employees to create their own AI coworkers.

A secondary treatment arm randomizes employees into one of the following two groups with equal probability:

- Cooperation: Employees are told that the company may combine similar AI coworkers. For employees in the credit treatment group, this means that credit would be shared among creators in proportion to their contributions.
- Competition: Employees are told that the company will not combine similar AI coworkers, so they will be competing with their coworkers over who has the best AI coworker.

Like the conditional-decision outcome, this treatment arm is designed to study strategic complementarities.

The same survey in which employees decide whether to create AI coworkers also asks a few additional questions that can be used for heterogeneity analysis. The company will share administrative data that can be used for heterogeneity analysis too. We will have baseline measures of whether employees think their expertise is unique, whether they are planning to build and AI Coworker, and whether a similar AI Coworker has been or will be built. To test mechanisms we collect expressions of concerns and benefits to building an AI Coworker.
Experimental Design Details
Not available
Randomization Method
Randomization done in office by a computer
Randomization Unit
The main treatment arms is randomized at the team level. The secondary treatment arm is randomized at the individual level.
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
Subjects have to respond to a survey to make their decisions, but we do not know in advance what the response rate will be. We expect between 10-20%. The following numbers correspond to the total number of employees invited to the survey: around 5,000 employees divided in roughly 300 teams
Sample size: planned number of observations
It will depend on the response rate (with a maximum of 5,000 employees)
Sample size (or number of clusters) by treatment arms
The main treatment arm will split the sample 50%-50%. The second treatment arm will split the sample 50%-50% too. They are cross-randomized.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Harvard University Institutional Review Board
IRB Approval Date
2026-05-15
IRB Approval Number
IRB26-0596