> the effect on violence was only consistent visible for the measure of Airbnb penetration–or the extent to which buildings in the neighborhood have one or more listings (and for the measure of density, or the listings per household in the two-year lags). It was never present for overall usage, or the estimated quantity of Airbnb guests
And
> A second and related concern could be the potential bias due to omitted variables. Though the DID models control for the initial conditions of neighborhoods, they do not necessarily control for trends in these variables that parallel the increases in both Airbnb presence and crime. For example, there is some evidence that gentrifying neighborhoods experience increases in certain types of crime
And
> we have tested this hypothesis in a single city
So there's apparently a correlation between a single metric and a single class of crime in a single city, and there's a multi-year delay in the effect. The author speculates that erosion of social fabric is the culprit, but doesn't actually back this theory up with either data or references. One would at least expect some references to some other study about the correlations on emigration and violence (my two cents here is that it feels more likely that the former is caused by the latter, if a correlation exists at all). They even acknowledge that the correlation could be due to a factor that isn't being accounted for.
But then the article writer drops all nuance and blasts a title pegging blame squarely on AirBnB, even though it isn't even established that correlation is consistently true everywhere, let alone causation.
I mean, yeah, I get that people don't like predatory real estate renting, and want to hear that there's a neatly convenient evil entity to blame, but come on now.