Overtourism is a growing concern for residents in Europe’s most visited cities. While economies across the region rely on tourism, many locals understandably now feel that the sheer volume of visitors to their communities is overwhelming.

But while some cities — like Barcelona — have spent more than a decade launching high-profile initiatives to ease overtourism, why do so many locals believe the problem is getting worse?
A new analysis of official data gives a clear answer: cities are failing to address the root cause of the problem. Indeed, if cities are serious about easing overtourism, they must address the overwhelming impact of hotels.