A series of studies with more than 1,100 U.S.-based adults found that nicknames can have positive effects — sometimes. Research has long shown that using friendly nicknames can be a great way to solidify personal relationships between peers or romantic partners. But what’s the impact of using nicknames in professional environments, in which power disparities are common? Through a series of studies with more than 1,100 U.S.-based adults, research finds that using nicknames in workplace