What are some causes and effects in The House on Mango Street?

One cause and effect relationship that occurs in The House on Mango Street has to do with Esperanza's lie to the nun about where she lives.  In the chapter titled "A Rice Sandwich," the nun insists that Esperanza go home to eat lunch.  She then asks Esperanza to point out the window to her house.  Esperanza is embarrassed, so the nun points to a row of degraded houses a few blocks away from the school.  Esperanza knows that she does not live there, but she lies and says that she does.  The nun points to these dilapidated houses because she assumes the worst about Esperanza and her family's economic condition--her own prejudice causes her to point at the worst houses she sees on the block.  Esperanza lies because she is ashamed of her family's poverty--she may recall a time in the past when another nun pointed to her house and asked her if she lived "There?", suggesting that the home was reprehensible.  The thoughts and misunderstandings that people have regarding socioeconomic class factor into these two cause and effect relationships.