Paris spends billions per year on public housing to keep workers in the city,seen%20in%20many%20world%20cities.

FWIW, the New York City Housing Authority spent $5 billion last year.

I’m guessing the billions spent in Paris include the banlieues.

“In France, an estimated 2 million households are on a waiting list for subsidized public housing, including 750,000 in the Paris area.”