4. Two airline companies, Airtouch and Windward, operate a route from City X to City Y, transporting a mix of passengers and freight. They must file their schedules with the National Transportation Board each year and cannot alter them during that year. Those schedules are revealed only after both companies have filed. Each airline must choose between a morning and an evening departure. The relevant payoff matrix appears below, with the first entry in each cell indicating Airtouch's daily profit and the second entry in each cell indicating Windward's daily profit. Windward Morning Evening Morning $1,000, $700 $700, $600 Airtouch Evening $750, $950 $900. $800 (a) In which market structure do these firms operate? Explain. Oligopoly. There are only two firms, and they are interdependent. (b) If Windward chooses an evening departure, which departure time is better for Airtouch? Evening. Their profit would be $900, versus $700 for morning departure. (c) Identify the dominant strategy for Windward. Morning