For the questions below, answer either true or false. if you answer true, explain why it is true. if you answer false, give a counter-example. in all three examples you may assume demand slopes downward and supply slopes upward (that is, neither curve is either perfectly vertical or horizontal), and that both curves are smooth (like they are in the rent control questions, not discrete like they were in homework 2).  in the simple model of supply and demand covered in this class, a binding price ceiling will always decrease total surplus