"Diminishing marginal benefit" implies that when Sally consumes one fewer unit of a good that she likes, her

The term "diminishing marginal benefit" refers to the principle that as a person increases consumption of a product, while keeping consumption of other products constant, there is a decline in the marginal utility that person derives from consuming each additional unit of that product.

So, if Sally consumes one fewer unit of a good that she likes, her total benefit or satisfaction from consuming goods might decrease, but the satisfaction she gets from each additional unit consumed (marginal benefit) would actually increase. This is because she is experiencing less of the good, so each unit of the good is more valuable to her.

Here's a step-by-step breakdown:

1. Sally is consuming a certain amount of a good she likes.
2. She decides to consume one fewer unit of this good.
3. As a result, her total satisfaction from consuming goods might decrease because she is consuming less of a good she enjoys.
4. However, because she is now consuming less of this good, each additional unit of the good becomes more valuable to her. This is the concept of diminishing marginal benefit.
5. Therefore, her marginal benefit (satisfaction from each additional unit consumed) increases.