Wed, 06/19/2024 - 17:34 Tech Insider Economy Rising competition in rental markets has been shaped in recent years by severe housing shortagesJakub Porzycki/Getty Images Tags economy, Real Estate, finance, Housing, real-estate, home-prices, Miami, Florida, Chicago, suburbs, rents, rental-market, housing-costs Source Millennials who can't afford to buy homes are helping make suburban Chicago and…