The economic principle best represented by deciding whether to eat one more slice of cheesecake based on how hungry you feel is the concept of making decisions at the margin. This principle involves evaluating the additional (marginal) benefit of consuming one more unit of a good against the additional cost or discomfort it may cause. In this case, you weigh the extra satisfaction from one more slice against potential negative effects like feeling too full
. This is known as the marginal decision-making principle, where choices are made based on incremental changes rather than all-or-nothing decisions. It reflects how consumers optimize their utility by considering "how much" to consume rather than simply whether to consume or not
