Kamika lives in Chicago but goes to school in Tucson, Arizona. For the last 2 years, she has made four trips home each year. During 2010, the price of a round-trip ticket from Chicago to Tucson increased from 350 to 600. As a result, Kamika decided not to buy a new outfit that year and decided not to drive to Phoenix with friends for an expensive rock concert.   QUESTION: By using this example, explain why both income and substitution effects might be expected to reduce Kamika’s number of trips home

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