This is the link between voting in elections and income
Research shows that extra income for children who grew up in households in the bottom 50% of the income distribution were more likely to vote as adults than those that didn't.
Jane Costello was educated at Oxford University (MA) and the London School of Economics and Political Science (Ph.D.). She did a postdoc in psychiatric epidemiology at the University of Pittsburgh. Currently she is a Professor in the Department of Psychiatry and Behavioral Sciences at Duke, where she directs the Center for Developmental Epidemiology.