Can symbolic awards motivate individuals to contribute their ideas and knowledge to a common project? Jana Gallus presents results from a large-scale natural field experiment at Wikipedia, exploring whether a purely symbolic award scheme can be used to motivate new editors and thus mitigate Wikipedia's editor retention problem. In a new project, she seeks to understand how awards have to be designed in order to enhance their recipients' self-confidence in gender-incongruent fields and encourage high-ability individuals to contribute their ideas. Speaker: Jana Gallus, Postdoctoral Fellow, Behavioral Insights Group, Harvard Kennedy School