Cheaper Child Care, More Children (2009), IFN Working Paper No. 782 (with Eva Mörk and Anna Sjögren).

Competition, Takeovers and Gender Discrimination (2008), IFN Working Paper No. 734 (with Fredrik Heyman and Jonas Vlachos).  

 Factor Supplies and the Direction of Technical change (2005), IFN Working Paper No. 640 (with Jonas Vlachos).