In the years after the housing bubble burst, rentals became more common in almost every major U.S. city, according to a recent study by Marketplace and APM Research Labs. That increase includes cities like St. Louis; Charlotte, North Carolina; and Saint Paul, Minnesota, that have long been thought of as affordable places to buy a home. We look at what drove the rise of renting in one such city — Cleveland — and what decline in homeownership says about its economy.