Dating across political lines
The main reason for the dramatic relationship with age is that younger voters are more inclined to register as independents than older voters are. As the chart shows, while the proportion of Democratic-independent and Republican-independent pairs shrinks from the youngest couples to the oldest couples, the proportion of Democratic-Republican pairs actually doubles — i.e., the purple band becomes bigger.
Fourth, we looked at the neighborhoods where couples live.
Second, 55 percent of married couples are Democratic-only or Republican-only, which raises a question: Is that a big number or a small number?
At least in these states, there’s about twice as much interparty marriage as interracial marriage.In our research paper, we try out 32 different ways to define marriage in the data.Without getting too deep into the details, there’s a trade-off in how we define marriage here.Maybe 10 to 11 percent of American couples actually have divergent party registrations.”In another study, surveyors asked people to judge resumes to see which cues would make someone more likely to hire a high school senior for a job.Surveyors manipulated the resumes to make the seniors sound like they were of a certain race, gender and academic achievement.