“…Consistent findings have been reported across gender, age, income, education, socioeconomic status (SES), and marital status. Specifically, females, younger seniors, those with higher levels of education and income, those of higher SES, and those who are married or live with a partner (especially one who volunteers) are more likely to volunteer than males, older seniors, those with lower levels of education and income, those of lower socioeconomic status, and those who do not live with a partner (Australian Bureau of Statistics 2018a; Choi et al 2007;Parkinson et al 2010;Pilkington et al 2012;Principi et al 2012a;Wahrendorf et al 2016). These findings are largely consistent with the integrated theory of volunteer work, which argues that volunteering is a productive activity requiring certain human, social, and cultural capital and, as such, is more likely among those who are more educated and of higher SES (Wilson and Musick 1997).…”