How do details such as 'stone or metal,' "many pigeons," "towers," and "wild cats that roam the god-
roads" help establish setting?

The sentences that support the idea that prices vary for complicated reasons are:

"These extra costs to businesses get passed along to the consumer in the form of higher prices". This sentence makes reference to the taxes that are added to the products. They make the prices vary greatly depending on their rate."The price a consumer is willing to pay for a garden hose-its perceived value -is a lot higher in Germany than in the United States". This sentence introduces the term "perceived value". It refers to the price that a consumer is willing to pay for a product. There are many factors that influence the "perceived value" of a product in different parts of the world. One example of the passage is how much the consumer earns at work.