Study: 10% of global travel revenue generated by TripAdvisor?

Study: 10% of global travel revenue generated by TripAdvisor? A team at Oxford Economics has quantified TripAdvisor’s contribution, showing just how significant the impact has been. According to the findings, in 2014 there were 22 million extra trips and 352 million additional tourism nights directly generated by TripAdvisor. Source: Hotel Marketing Study: 10% of global travel revenue generated by TripAdvisor?