Fifteen years after the birth of Airbnb in 2008, many of the world's cities have been transformed by platform-mediated short-term accommodation--a phenomenon suspected of disturbing local life and removing dwellings from local housing inventories. Based on mixed-method, multi-level comparative research in twelve large European cities, coauthors Thomas Aguilera, Francesca Artioli, and Claire Colomb show that strikingly different regulatory regimes...