We look at why rents have gone up across the nation, and whether that trend will end any time soon.Read more:Nationwide, the price of renting a home has skyrocketed recently — in some places the rent is up more than 30 percent. As economics correspondent Abha Bhattarai explains, the effect on some renters has been severe: Millions of Americans have been forced to move, while others have become homeless until they can find another place to live.