The discrepancy between community property and common law became even more pronounced at higher income levels, in particular when there was a large difference in income between spouses. (dinesentax.com)
This result held even after accounting for differences in income and health. (livescience.com)
As the cohort ages, differences are accounted for more fully by differences in income from the 3rd pillar, especially after age 70. (fin.gov.on.ca)