InterContinental Hotels Group and Starwood executives are concerned about losing market share to Airbnb and appear unsure about the peer-to-peer apartment sharing site’s long-term impact. “I think for us to say we’re not concerned or focused on Airbnb, would be very short-sighted,” Simon Turner, president of global development at Starwood Hotels and Resorts, said during a panel discussion at the 36th Annual New York University International Hospitality Industry Investment Conference in Manhattan June 3.