What the evidence says
None of the machine-extracted claims available for this page measure owner response to vacancy fees directly. The single underlying source (Asquith 2019) instead studies how rent-controlled ("controlled") landlords respond to a price increase generated by a shuttle stop placement — a natural-experiment proxy for a positive shock to nearby market rents that controlled landlords cannot capture through the regulated rent itself. That is the closest available evidence to "owner response to an escalating cost/price pressure," and it is presented here on that basis, not as vacancy-fee evidence.
Facing that price increase, controlled landlords increased market withdrawal filings — moves to take units out of the rental market altogether — rather than raise rents they were not permitted to raise. At the same time, the same landlords became less likely to create vacancies through evictions in response to that same price increase. Read together, the study's own framing treats withdrawal filings and evictions as substitute routes to the same end (vacating a controlled unit), with landlords favoring withdrawal over eviction when a price shock hits.
That substitution is not fixed, however. The same source reports that when policy raises the barriers to market withdrawal — making the withdrawal-filing route harder to use — controlled landlords increase at-fault evictions instead. This points to a mechanism: eviction and market withdrawal function as alternative levers for controlled landlords to exit or clear a unit, and which lever dominates depends on how accessible the withdrawal path is.
For all three findings, the confidence rating on direction is high but confidence on magnitude is only medium, and each claim states explicitly that the underlying abstract does not quantify the size of the effect. No claim in this evidence set gives a percentage, count, or dollar figure for any of the three effects. All three also come from one quasi-experimental paper (tier D), so there is no independent replication to check consensus against.
On the stated topic — owner response magnitude to escalating vacancy fees specifically — the evidence here is absent. The claims speak to landlord behavior under rent control facing a price increase and under policy barriers to market exit, not to vacancy fees, and none of them quantify a magnitude for any response.