The literature on short-term rental emphasises the heterogeneity of the hosts population. Some argue that professional and opportunistic hosts differ in terms of their pricing strategy. This study highlights how differences in market perception and information create a price differential between professional and non-professional players. Proposing an original and accurate definition of professional hosts, we rely on a large dataset of almost 9000 properties and 73,000 observations to investigate the pricing behaviour of Airbnb sellers in Corsica (France). Using OLS and the double-machine learning methods, we demonstrate that a price differential exists between professional and opportunistic sellers. In addition, we assess the impact of seasonality in demand on the size and direction of this price differential. We find that professionals perceive a higher degree of market power than others during the peak season and it allows them to enhance their revenues.

关于短期租赁的文献强调了寄宿人口的异质性。一些人认为，专业和机会主义的房东在定价策略方面有所不同。这项研究强调了市场认知和信息的差异如何造成专业和非专业玩家之间的价格差异。提出了专业房东的原始和准确定义，我们依靠包含近 9000 处房产和 73,000 次观察的大型数据集来调查科西嘉岛（法国）Airbnb 卖家的定价行为。使用 OLS 和双机器学习方法，我们证明了专业卖家和机会主义卖家之间存在价格差异。此外，我们评估了需求季节性对这种价格差异的大小和方向的影响。