Male CEOs in Denmark who have a daughter are more apt to close the gender pay gap at their companies, reports the Wall Street Journal. Overall in Denmark, there is a gender wage gap of 21.5 percent. But the birth of a daughter to a male CEO caused that gap to close by 0.5 percentage points. Moreover, the birth of a first daughter caused the gap to close by 0.8 percentage points, and if that daughter was also the first child, the gap closed by 2.8 percentage points. Women with college degrees benefited from the births more than women with high-school or primary educations.