The expansion of accommodation establishments in an urban area might bring about a transformation to its commercial structure to meet tourists' needs. This can result in the loss of the area's identity, jeopardize its authenticity, and worsen the residents' quality of life. Yet, beyond some anecdotes which currently dominate the policy debate, no empirical evidence exists identifying which specific businesses abound around accommodation establishments. This paper proposes to fill this gap by estimating in Barcelona the degree to which each commercial sector appears to be geographically coagglomerated with the accommodation industry. Barcelona seems to be an appropriate case of study since it has already shown signs of the touristification of the commercial sector in neighborhoods that comprise most of the tourist accommodation offer. The results of this study allow identifying the particular commercial sectors that most and least coagglomerate with accommodation establishments; and show that tourism-oriented sectors tend to colocate with accommodation establishments, whereas residential-oriented ones do not follow this pattern. These results might help design policies aimed to preserve neighborhoods' identities and community resilience in tourist cities.

市区住宿设施的扩展可能会带来其商业结构的转变，以满足游客的需求。这可能会导致该地区身份的丢失，危害其真实性并恶化居民的生活质量。但是，除了当前在政策辩论中占主导地位的轶事之外，没有经验证据可以确定住宿场所周围有哪些具体企业。本文建议通过在巴塞罗那估算每个商业部门在地理上与住宿业的凝聚程度来填补这一空白。巴塞罗那似乎是一个合适的研究案例，因为它已经显示出商业旅游业在包括大部分游客住宿设施的社区中出现旅游化的迹象。这项研究的结果可以确定与住宿场所最紧密结合的特定商业领域；并表明，以旅游业为主的部门倾向于与住宿场所同时使用，而以居民为主导的部门则没有遵循这种模式。这些结果可能有助于设计旨在维护旅游城市的社区身份和社区弹性的政策。