Understanding the impacts of ridesourcing on various transport externalities is an active research area. However, research on relatively long-term impacts such as vehicle ownership is limited and mostly focused on certain geographies. This is the first study that empirically examines the impacts of ridesourcing on vehicle ownership in Great Britain. We used vehicle licensing data for local authority districts from 2001 to 2019. We exploit the heterogeneity in entry dates of ridesourcing and employ the difference-in-differences method. We found that the impacts of the ridesourcing on vehicle numbers are heterogeneous across Great Britain. While the changes in vehicle numbers attributable to ridesourcing availability are not statistically significant in metropolitan districts and urban areas, we find 2.2% and 1.1% reductions in London and rural areas respectively. Our results contribute to future research on the broader impacts of ridesourcing and can inform research and policy efforts in this area, notably regarding decarbonisation.

了解拼车对各种交通外部性的影响是一个活跃的研究领域。然而，对车辆拥有量等相对长期影响的研究是有限的，而且主要集中在某些地区。这是第一项通过实证检验拼车服务对英国汽车保有量影响的研究。我们使用了 2001 年至 2019 年地方当局地区的车辆牌照数据。我们利用了拼车进入日期的异质性，并采用了差异法。我们发现，在英国，拼车对车辆数量的影响是不同的。虽然在大都市区和城市地区，由于拼车可用性导致的车辆数量变化在统计上并不显着，但我们发现分别为 2.2% 和 1。伦敦和农村地区分别减少 1%。我们的研究结果有助于未来对乘车外包更广泛影响的研究，并可以为该领域的研究和政策工作提供信息，特别是在脱碳方面。