Rising Rents Risk U.S. Inflation as Fed's Restraint Questioned

``U.S. apartment rents climbed 5 percent in the 12 months through April, according to research company Axiometrics Inc. Effective rents in the first quarter, or what tenants actually paid, rose in 75 of the 82 markets tracked by data provider Reis Inc., which said the average was up 2.5 percent from a year earlier to $991 a month.''