But according to analysts at Deutsche Bank, the company isn't a threat to hotel chains — yet. "Ultimately, Airbnb looks to be 'increasing the pie,' rather than necessarily reducing the share for others," said Iona Dent and Geof Collyer in a deep-dive research note Monday. "Currently when cities sell out for an event, for example, and the market rate goes significantly higher than normal, we believe that is where Airbnb is currently offering a key alternative." They noted that in many major cities, hotel revenue per available room has stayed roughly the same while the supply of rooms including Airbnb listings has increased significantly. The analysts likened the effect to low-cost airlines. Get the full story at Business Insider UK