Attempts Keep the Highest / 1 5. Law of Demand Suppose that business travelers and vacationers have the following demand for airline tickets from New York to Boston: Price Quantity Demanded by Business Travelers Quantity Demanded by Vacationers ( Dollars) (Tickets) (Tickets) 150 2,100 1,000 200 2,000 800 250 1,900 600 300 1,800 400 As the price of tickets rises from $250 to $300, the price elasticity of demand for business travelers is 7 , and the price elasticity of demand for vacationers is , using the midpoint method. Therefore, the demand for airline tickets in this price range is 7 elastic for vacationers because business travelers are sensitive to changes in price