In-class interactive game between students playing a modification of the "selectorate-electorate" game. This game has a leader distributing private and public benefits, and others voting. In the activity students logged into Econvision.com and played the game. At the end they were given a diagnostic report of the activity. Everything was done through laptops. Subsequently students had questions in a midterm that tested comprehension of the model, though nothing was done immediately after the class session.