分享意味着租赁？：Airbnb的市场分析
Sharing Means Renting?: An Entire-marketplace Analysis of Airbnb
摘要：
Airbnb是一个在线住宿市场，经历了惊人的增长，伴随着激烈的争论和世界各地的分散监管。然而，目前的话语主要集中在观点上，而不是经验证据。在这里，我们的目标是通过展示Airbnb的第一个大规模测量研究来弥合这一差距，使用包含230万个列表，130万个主机和1930万条评论的抓取数据集。我们衡量了正在进行的辩论和共享经济的核心的几个关键特征。除此之外，我们发现Airbnb已经达到了全球性但异构的覆盖范围。Airbnb在许多国家的大多数房源都是完整的房屋，这表明Airbnb实际上更像是一个租赁市场，而不是一个空余房间共享平台。对星级的分析表明，有一个偏向积极的评级，放大了偏向使用积极的话在评论。这种偏见的程度大于Yelp评论，Yelp评论已经显示出积极的偏见。我们调查了一个关键问题--在Airbnb上拥有多个房源的商业房东--这在当前的辩论中被反复讨论。我们发现他们的存在是普遍的，他们是加入Airbnb的早期推动者，他们的房源不成比例地位于美国。我们的工作推进了目前对Airbnb如何被使用的理解，并可能作为一个独立的经验参考，为辩论提供信息。
英文摘要：
Airbnb, an online marketplace for accommodations, has experienced a staggering growth accompanied by intense debates and scattered regulations around the world. Current discourses, however, are largely focused on opinions rather than empirical evidences. Here, we aim to bridge this gap by presenting the first large-scale measurement study on Airbnb, using a crawled data set containing 2.3 million listings, 1.3 million hosts, and 19.3 million reviews. We measure several key characteristics at the heart of the ongoing debate and the sharing economy. Among others, we find that Airbnb has reached a global yet heterogeneous coverage. The majority of its listings across many countries are entire homes, suggesting that Airbnb is actually more like a rental marketplace rather than a spare-room sharing platform. Analysis on star-ratings reveals that there is a bias toward positive ratings, amplified by a bias toward using positive words in reviews. The extent of such bias is greater than Yelp reviews, which were already shown to exhibit a positive bias. We investigate a key issue---commercial hosts who own multiple listings on Airbnb---repeatedly discussed in the current debate. We find that their existence is prevalent, they are early-movers towards joining Airbnb, and their listings are disproportionately entire homes and located in the US. Our work advances the current understanding of how Airbnb is being used and may serve as an independent and empirical reference to inform the debate.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
