Please help me to answer these two questions: 1) How did the economic and business environment contribute to the growth of the commuter industry? 2) What were the benefits to both the commuter and the large airline to have a code sharing arrangement? Solution 1) Growth in economic and business environement means more business will happen, more people will travel to various places for business meetings, more foreign investments will come in, more foreigners will come in the country to meet, more government level talks will happen. All this will lead to as increase in the growth of the commuter industry 2) In a code sharing arrangement, flights ususally does not vacant. They try to optimize the space. Airlines benefit as they get paid for the seat which would not have been sold due to excess capacity and consumers benefit as they get cheaper ticket price. .