Add this to your overflowing list of reasons why women just can’t win. According to a new study, it’s hard for women to get a fair shake because people just love lying to them during negotiations.

Conducted by the University of California at Berkeley and the University of Pennsylvania, the study recruited MBA students who played agents for either seller or buyers in a real estate transaction. Here’s how Jane Hu summarizes the findings in Slate:

Both men and women reported lying to women more often. Twenty-four percent of men said they lied to a female partner, while only 3 percent of men said they lied to a male partner. Women also lied to other women (17 percent), but they lied to men as well (11 percent).