Explaining the diversity of policy responses to platform-mediated short-term rentals in European cities: A comparison of Barcelona, Paris and Milan

Short-term rentals facilitated by online platforms (like Airbnb) have recently become a subject of intense debate, leading many city governments to pass new regulations attempting to control both their proliferation and platform activities. While these policy responses vary greatly from city to city, there is little comparative research to explain this diversity. This paper employs a sociological approach to public policy analysis to compare the politicization process, collective action around and regulation of platform-mediated short-term rentals (PM-STR) in three cities - Barcelona, Paris and Milan. They were chosen to represent most-dissimilar cases in terms of regulatory outputs, both in terms of stringency (weak in Milan, intermediate in Paris, strong in Barcelona) and choice of policy sectors (sharing economy and tourism in Milan, housing and land use in Paris, urban planning and tourism in Barcelona). Two main findings emerged from the comparison. First, the differences between regulations can be explained by the type of actors who politicized the issue in the first place and framed it within a specific policy sector, the pre-existing policy instruments traditionally used in that sector and the distribution of competences between the city and higher tiers of government. Second, the regulations remain continuously subject to intense political mobilization by six types of actors with clashing interests: professional STR operators, associations of hosts or 'home-sharers', the hotel industry, residents' associations or citizens' movements, 'sharing economy' advocates and corporate platforms. Each actor constructs different narratives regarding PM-STR, claiming different types of rights in this contentious politics of regulation.