In 1998 the Norwegian government introduced a program that increased parents’ incentives to stay home with children … under the age of three. Many eligible children had older siblings, and we investigate how this program affected long … not by changes in family income or father’s labor force participation …

family types. We compare sibling differences in families where the mother enters the labor force when the children are older … out of the labor force during the entirety of her children’s adolescent years. Our identification strategy is, therefore …, in the spirit of traditional difference-in-differences, the first difference pertaining to the differences in children …