assortative mating

This is called 'assortative mating.' The poor girl-rich guy (or rich girl-poor guy) trope common in Filipino television might be just that - a trope.

A closely related amplifying mechanism is assortative mating in the marriage market.

Some studies do show that adopted siblings have similar levels of educational success, but other twin research argues that due to assortative mating, or the tendency of people with similar preferences and interests to marry each other, fraternal twins are more similar than we'd expect because so many parents share similar genetic traits.

Atypical assortative mating based on body size in an explosive-breeding toad from a tropical island of southern China.

Going back to their impressive dataset, the researchers were able to perform analyses that detected assortative mating.

The answer might lie in assortative mating. People tend to select partners with traits like their own -- in this case, how long they live, they explained.

Genetic divergence and assortative mating between colour morphs of the sea urchin Paracenlrotus gaimardi.

Whom people choose to marry (assortative mating has been on the rise: physicians marry physicians instead of nurses) and how many people remain single may explain one-third of the increase in the Gini coefficient, according to recent research.

Assortative mating: "Like mating with like" This is "rude" but means that fat people marry and procreate with other fat people.

If the assortative mating with respect to age would be present, so that our result could reflect also female age, but no such phenomenon has been documented so far (Geslin et al.

We add to this debate by presenting direct evidence that the correlation in the risk preferences of spouses is driven by assimilation, rather than by assortative mating.