(CNN) Almost 90 percent of men hold some form of bias against women, according to a new global UN report.

Surprisingly, 90% of women do, too.

The Gender Social Norms Index, which measures how social beliefs affect gender equality, was released by the United Nations Development Programme on Thursday.

Despite the progress that has occurred in closing the equality gap, researchers found that people's beliefs still negatively impact women's rights and equality.

For instance, the GSNI revealed that nearly half of the world's population believes that men make better political leaders, and more than 40 percent believe men make better business executives.

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