however klasen argues that as no society past or present treated the two sexes equally and the two sexes did not differ in survivalrelated behaviours it is hard to separate biology from behaviour thus it is hard to say whether females should enjoy a longevity advantage of or five years views vary on whether income and labour force participation are relevant indicators related to women s wellbeing klasen argues that it is not immediately clear that gender inequalities in labour force participation should necessarily be seen as relevant for a wellbeing assessment as it might be the result of a consensual division of labour within the household