The following graph input tool shows the daily demand for hotel rooms at the Rivers Hotel and Casino in Atlantic City, New Jersey. To help the hotel management better understand the market, an economist identified three primary factors that affect the demand for rooms each night. These demand factors, along with the values corresponding to the initial demand curve, are shown in the following table and alongside the graph input tool. Demand Factor Initial Value Average American household income $40,000 per year Roundtrip airfare from Des Moines (DSM) to Atlantic City (ACY) $250 per roundtrip Room rate at the Continental Hotel and Casino, which is near the Rivers $250 per night