**Acknowledgment**:

Grant "Housing and international mobility in cities of the Canary Islands: the emergence of new forms of urban inequality" (RTI2018-093296-B-C21) funded by MCIN/AEI/ 10.13039/501100011033 and by "ERDF A way of making Europe".

Grant "Housing and international mobility in cities of the Balearic Islands: the emergence of new forms of urban inequality" (RTI2018-093296-B-C22) funded by MCIN/AEI/ 10.13039/501100011033 and by "ERDF A way of making Europe".

Grant "The housing problem in Spain's fragmented metropolises. Perpetuation over time, new housing markets and solutions from the public administration" (PID2019-108120RB-C31) MCIN/AEI/10.13039/501100011033 and by "ERDF A way of making Europe".
