Facilitating communication in a workplace

Last registered on December 06, 2023


Trial Information

General Information

Facilitating communication in a workplace
Initial registration date
November 23, 2023

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
December 06, 2023, 7:50 AM EST

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


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Primary Investigator

Hitotsubashi University

Other Primary Investigator(s)

Additional Trial Information

In development
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
We study the role of communication on productivity in a company. We introduce a communication-facilitating app to the employees in the company. The app provides each employee's detailed profile and skill sets at a glance, improving "who knows what" within the company. In addition, a part of the employees will be offered matching services and interventions to encourage conversations with employees in other departments. By examining the facilitated communications with previously unknown employees by the app and matching service and the change in productivity, we examine the impact of communications on productivity.
External Link(s)

Registration Citation

Nakajima, Kentaro. 2023. "Facilitating communication in a workplace." AEA RCT Registry. December 06. https://doi.org/10.1257/rct.12448-1.0
Sponsors & Partners

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Experimental Details


A randomized controlled trial.
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
Overtime working hours
Work performance evaluation
Number of communication partners (within and outside the division)
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Employee satisfaction
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
A randomized controlled trial.
Experimental Design Details
Not available
Randomization Method
Randomization will be done in the office by a computer.
Randomization Unit
The unit of randomization is the individual employee level in the company.
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
No cluster.
Sample size: planned number of observations
500 employees.
Sample size (or number of clusters) by treatment arms
200 employees control, 150 employees provided app, and 150 employees provided app and matching service
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
Hitotsubashi University Research Ethics Examination Committee
IRB Approval Date
IRB Approval Number