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Impact of information intervention on paternity leave use
Last registered on September 16, 2019

Pre-Trial

Trial Information
General Information
Title
Impact of information intervention on paternity leave use
RCT ID
AEARCTR-0004420
Initial registration date
September 16, 2019
Last updated
September 16, 2019 1:54 PM EDT
Location(s)

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Primary Investigator
Affiliation
The Social Insurance Institution of Finland
Other Primary Investigator(s)
PI Affiliation
The Social Insurance Institution of Finland
Additional Trial Information
Status
On going
Start date
2018-06-01
End date
2020-12-31
Secondary IDs
Abstract
This study examines the impact of information intervention on paternity leave use. In Finland, fathers are entitled to paternity leave of 54 working days. Fathers can use 1 to 18 days at the same time as the child's mother is on leave. The remaining days be can used after the parental leave but not later than the child reaches the age of two. More than half of fathers do no use the remaining days of their leave. In this trial, we test whether an information intervention has an impact and send fathers a letter that provides information on paternity leave.
External Link(s)
Registration Citation
Citation
Jauhiainen, Signe and Miia Saarikallio-Torp. 2019. "Impact of information intervention on paternity leave use." AEA RCT Registry. September 16. https://doi.org/10.1257/rct.4420-1.0.
Experimental Details
Interventions
Intervention(s)
We send letters to fathers. The letters contain information on paternity leave, instructions how to apply for allowance and fathers’ testimonies. Two different letters are tested, focusing on either family or working life.
Intervention Start Date
2018-11-26
Intervention End Date
2018-12-07
Primary Outcomes
Primary Outcomes (end points)
1) Take-up of paternity leave, percentage of fathers
2) Duration of paternity leave, average number of days
Primary Outcomes (explanation)
We observe the take-up and duration of paternity leave from the administrative registers of The Social Insurance Institution of Finland.
Secondary Outcomes
Secondary Outcomes (end points)
Timing of paternity leave, age of children
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We randomly select 4000 fathers to the treatment group. 1500 fathers receive a letter focusing on working life and another 1500 fathers a letter focusing on family life. In the third sub-group of 1000 fathers, we send the letter to both father and mother. Fathers having a child that was born during the same time period form the control group.
Experimental Design Details
Not available
Randomization Method
Randomization done in office by a statistical software
Randomization Unit
individual
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
4000 fathers in the treatment group and 4654 fathers in the control group (no clusters)
Sample size: planned number of observations
4000 fathers in the treatment group and 4654 fathers in the control group
Sample size (or number of clusters) by treatment arms
1500 fathers receive a letter focusing on family life, 1500 fathers receive a letter focusing on working life, 1000 fathers and mothers receiving a letter and 4654 in the control group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Research Ethics Committee of The Social Insurance Institution of Finland
IRB Approval Date
2018-11-20
IRB Approval Number
Application number 8/1/500/2018