There is an old saying in the west: Men seek youth and beauty, while women focus on wealth and status. But now new research suggests that the mate-seeking preferences by gender tend to wane as men and women achieve financial equality.

Based on biology, sperm are cheap, while eggs are expensive. Women pay more efforts on a baby’s born than men. A a result, women will be far more selective than men about their sexual partners, and they will tend to seek those with the most resources to invest in their children.While men care more about women’s beauty and good health than their ability. These mate-seeking preferences may have made sense when humans first evolved, but now the world has changed a lot.

Researchers at the University of York in the U. K. made a survey about whether the women’s increased earning power and status made a difference on mate-seeking preferences. Psychological Science published a study on the qualities men and women most wanted in their mate.

These study show women who employed full-time on their own put less emphasis on a man’s qualities. So the author put forward a idea that people begin to look for mates who fit into their future lives as the positioning of men and women changes into equal. According to a research on a new measure of gender equity by the World Economic Forum in 2006, basically show that the more equal men and women become, the less emphasis men placed on youth and beauty, and the less emphasis women put on wealth and status.In the research America just ranks 17th in the world. The top four most gender-equal nations are all in Scandinavia, The result suggested indirectly that the role of culture has been underestimated.

However, authors note that even the most egalitarian countries in the world are equally as far from perfect equality, so they made a conclusion: “As long as gender inequality exists in a nation, the gender differentiation in mating preferences cannot be changed. ’’