“…Wealth is an important dimension of economic well-being (Killewald, 2017;Hamoudi & Dowd, 2013;Wolff & Zacharias, 2009), and understanding its determinants has become increasingly scrutinized in the sociological, demographic, and economic literature. Although wealth inequality between households has been increasing throughout the developed world over recent decades (Piketty, 2013), a less documented phenomenon is the substantial wealth inequality within households that has been found in several countries, such as France (Frémeaux & Leturcq, 2020), Germany (Sierminska et al, 2018) or Austria (Rehm et al, 2022). It increased in France between 1998 and 2015 (Frémeaux & Leturcq, 2020), while it decreased in Germany between 2002 and 2012 (Sierminska et al, 2018).…”