Developers Diversified Realty Corporation (DDR) operates as a real estate investment trust (REIT) in the United States. The company engages in acquiring, developing, redeveloping, owning, leasing, and managing shopping centers, mini-malls, and lifestyle centers. As of February 5, 2007, it owned or managed approximately 461 shopping centers and 7 business centers, as well as 1,170 acres of undeveloped land. The company qualifies as a REIT for federal income tax purposes. As a REIT, the company wo ...