Ключевые слова: abstract, air vehicle, airplane, business, business travel, coin, concept, cost, cube, development, expense, expensive, finance, global business, growth, hotel, increase, industry, inflation, insurance, investment, journey, leisure activity, making money, money, passenger, price, risk, sale, service, stock, tax, ticket, time, tourism, tourist, train, transport, transportation, travel, travel destinations, travel insurance, traveler, trip, vacation, vacations, wealth, word,