Deciding whether to fly or drive can depend on certain factors such as: price, time, and preference. However, if someone decides to fly, there are many factors that relate to cost-benefit analysis. An airline’s goal to ensure their passengers of their safety because they want their business and they would like to have a good reputation so more people decide to fly with them. But, due to cost-benefit analysis, there are certain factors that cause travelers to not be completely safe. The example provided from the text, "Flying the Friendly Skies?," describes the costs of ensuring safety. The example elaborates on the amount of exit doors on planes and whether they allow people to escape the plane in an emergency in an efficient fashion. The author says that, “each additional door adds less in safety benefits than the previous one” (17). In simple terms, the more doors added to the plane, the number of people using a specific door is going to go down, making the value of the door go down. While more people will escape in less amount of time, the cost of putting all the doors in may not be efficient if the same amount of people can escape safely with fewer doors. In an economist’s eyes, the value of the doors after some are taken away will go up because more people are using that door to escape the plane. This is where most airlines have to choose what they value. If the airline wants people to be able to escape quickly in an emergency and they have the funds to pay for more doors, then they may choose to put more doors on their planes. On the other hand, if the airline finds more doors to be costly and uneconomical, then they may keep the fewer amounts of doors. Another example the author used was whether to add an extra fuel gauge to ensure that the plane does not run out of gas while in flight. If a plane has only one fuel gauge, then there is a risk that the fuel gauge may malfunction jeopardizing the passengers’ safety. On t