The Economics Teacher, known as Mr. Lorensax is a minor character in the movie Ferris Bueller's Day Off. He is the Economics Teacher at Ferris Bueller's high school. He is famous for the line "Bueller...? Bueller...?" during the roll call scene. He is played by Ben Stein.
- His real name has been confirmed to be Mr. Lorensax in the Ferris Bueller novel.
- The actor Ben Stein was an actual writer, lawyer, and commentator in the field of economics.
- In the scene where he was teaching economics to the sleep-deprived students, none of the stuff he said was scripted. He was told to say what he knew as he went along (also called improvising).