https://www.nytimes.com/2019/01/14/opin ... e=Homepage
In one of my favorite papers, “Boys Will Be Boys,” published in the Quarterly Journal of Economics, Terrance Odean at U.C. Berkeley and Brad Barber at U.C. Davis found that accounts owned by women outperformed those of men because women traded a whopping 69 percent less than men and incurred less in trading costs. Why did the men trade more? The research indicates men regularly exhibit overconfidence in their ability.