Wait a second. You're using the 2020 pandemic and the massive system shock it caused on (among other industries) tourism as a proxy for the impact of tourism in

Wait a second. You're using the 2020 pandemic and the massive system shock it caused on (among other industries) tourism as a proxy for the impact of tourism in particular on rental availability and then extrapolating it further to the effects of AirBnB in particular? As opposed to the gigantic obvious other system shocks that happened in 2020 which also had a massive impact on housing and commuting patterns vis a vis work from home and mass exodus from urban areas in general. Pray tell have you ever tried to reject the hypothesis AirBnB is the cause of housing problems? Have you looked and failed to find data in that direction at all?