These talks are really helpful to show you the competition among . graduates, and they may also give you an idea of the recent research topics in economics. Another option that always comes in handy is to go over recent issues of some journals just to relax and/or see what is going on in economics nowadays, especially articles or working papers published by your current professors. Since professors often like to put their own “special touch” to their classes (., show samples or their research on the core economics courses), chances are you may end up getting another point.