Theres two products: "safe cars" and "dangerous cars" a. are these two products substitutes or compliments? b. if new research makes it easier to produce safe cars, what happens to the supply of safe cars? What will happen to the equilibrium price of safe cars? c. now that the price of safe cars has chafed, how does this impact the demand for dangerous cars? d. in a free market, as engineers and scientist discover new ways to make cars safer, the number of dangerous cars sold will tend to...?