India is the fastest-growing business travel market in the world along with Indonesia and will average double-digit growth in business travel spending over the next five years, According to the GBTA BTI™ Outlook – Annual Global Report & Forecast, a new report released today by the GBTA Foundation, sponsored by Visa. However, at $291 billion, China has surpassed the United States as the largest business travel market in the world in 2015.