Before 1993, almost no Norwegian father took paid leave to look after a new baby. According to figures the International Labour Organization later reported, take-up in 1992 was 2.4 percent. Five years later, among fathers who had the right to the leave, over 70 percent took it. Same country, roughly the same men, one new rule.
We are not policy economists or sociologists, and this is a piece of reading and reflection on a well-studied natural experiment, not advice about your own leave. The research here is observational and points to broad population patterns; how any of it applies to a particular family depends on rules that differ country to country and change over time.
The tidy explanation for why fathers historically took little leave is that they simply didn’t want it. Mothers were at home anyway, the thinking goes, so fathers stayed at work, and that arrangement reflected what families themselves chose.
Norway is an awkward case for that story. Fathers there were already allowed to take leave well before 1993. Shared parental leave, open to either parent, had existed for years. Most fathers just didn’t use it. If preference were the whole explanation, behavior should only change if you changed what fathers wanted and nobody changed what fathers wanted overnight in 1993.
What changed was the design. On 1 April 1993, Norway’s Labour government introduced a father’s quota: four weeks of paid parental leave reserved for fathers and no one else, the first policy of its kind in the world.
Researchers Mari Rege and Ingeborg Foldøy Solli treated the 1993 reform as a natural experiment and found that among full-time working fathers, leave-taking jumped from under 3 percent before the change to about 60 percent by 1995.
Keep the population steady, change only the rule, and behavior moves. That is about as clean a piece of evidence as you can get that the earlier low numbers weren’t simply a reflection of what fathers wanted.
The key feature is this: the quota can’t be handed over. As the ILO described it, “These four weeks cannot be transferred to the mother and are lost if the father does not use them.” That last part is what does the persuading. Under the old shared system, any leave a father skipped could just be used by the mother, so the family lost nothing by keeping him at work. Under the quota, skipped weeks vanish. The household isn’t choosing between father-at-home and mother-at-home. It’s choosing between father-at-home and nobody getting those weeks at all.
One father the ILO spoke to, a naval officer named Isak Berntsen, put it plainly: “so I have to use it now or I will lose it.” That’s one man’s account, not proof of how fathers generally think, but it captures the design in a sentence. The quota didn’t lecture anyone about equality. It changed the default, so that not taking leave became the option you had to actively give something up to choose.
Later changes to the length of the quota support the same read. The four weeks were never permanent. The quota was gradually lengthened over the following decades and now sits at 15 weeks at the full time rate. Fathers’ take-up rose along with the reserved weeks, which is what you’d expect if the earmarking, not a one-time shift in attitudes, was doing the work.
That reserved quotas sharply raise fathers’ leave-taking is about as settled as these things get, and the pattern shows up well beyond Norway. Spain introduced a two-week father quota in 2007, and Lidia Farré and Libertad González found it raised fathers’ take-up by as much as 400 percent. The response to a reserved quota is large and repeatable, it seems.
Closing thoughts
The design lesson in the Norwegian numbers may be this: the reform didn’t try to talk fathers into wanting something different. It changed the option they had to opt out of.
A benefit a family can hand to someone else is easy to skip. A benefit that disappears if one specific person doesn’t use it is much harder to leave on the table. The persuasion is built into the structure, not the messaging.
For a parent weighing your own leave, none of these figures are a rule you can lift and apply. Eligibility, length, pay, and whether any portion is reserved vary considerably by country and keep changing, Norway included. The useful thing isn’t a number to copy. It’s a reminder to check what your own scheme actually reserves.