Jorge Moreno (left) says "vulture funds" are hiking up rents, while Pierina Nicuray points out that there is "a lack of homes" in Spain
Pierina Nicuray, a 21-year-old university graduate, has spent a week camped out in Madrid's Puerta del Sol square.
Like many of the hundreds of others who have pitched their tents here to protest at Spain's housing crisis, she has no doubts when it comes to diagnosing the cause.
"It's the same problem as always," she says. "A lack of homes."
She adds: "Landlords are taking advantage of the situation to raise rentals, and then there's also Airbnb."