I'm definitely new here, so forgive me if this is second-grade material. Perhaps I am naive, but I always thought that lines moved in order to induce action on the opposite side of a wager. If too many teams bet on the favorite, the spread would increase, in order to induce wagers on the other side.
If that general proposition is true, how great must the disparity be before the line moves? If the lines move too much doesn't the book face the possibility of losing both sets of bets, with an in-between finish?
If that general proposition isn't true, what makes lines move?
If that general proposition is true, how great must the disparity be before the line moves? If the lines move too much doesn't the book face the possibility of losing both sets of bets, with an in-between finish?
If that general proposition isn't true, what makes lines move?

