Both parents must use at least 10% of this budget, but they can also roll part of it over to use when their children start school (and again benefit greatly from parental support). Of course, few countries are as wealthy as Norway; but the principle – including support for elder care – can be applied to 30-, 40-, or 50-week periods.
这一机制的基本形式已经存在于多个国家。挪威提供49周的全薪产假或58周的80%薪产假。双亲都必须使用至少10%的这一预算，但也可以将其中一部分暂存起来，等到孩子开始上学时再用（后者也将从父母的支持中获得巨大好处）。当然，像挪威那样富裕的国家很少，但其中的原则——包括照顾老人的支持——可以适用于30周、40周或50周。