A new study shows male same-gender couples have highest family income. Some of you may remember the acronym “DINK” meaning “Dual-Income, No Kids”. A new Census data analysis from the Hamilton Project of the D.C.-based Brookings Institution, shows that same-gender male couples have the nation’s highest median family income among three types of couples. The authors point to U.S. Census Bureau data showing that same-gender female couples had the lowest median family incomes, even though they were more likely than opposite-gender couples to have two income earners, have higher education, and live in a densely populated area, which the study says are characteristics associated with higher incomes. The report also says that when same-sex male and same-sex female couples are lumped together, the census data show they have a higher median income than opposite-gender couples.