Special publics Special public: Childbearing aged Path AGE groups Adults Childbearing aged Number of studies 2 Additional keywords fertile, Related publics List of Studies on this Public Reference Title of publication Public Baranowska-Rataj & Matysiak (2011): study PL 2003 Does Parenthood increase Happiness? Evidence for Poland. 18-35 aged women, Poland, 2003-2011 Ifcher & Zarghamee (2014): study US 1972 The Happiness of Single Mothers: Evidence from the General Social Survey 18-45 aged, USA 1972-2008