Valentina Bondarenko, a top Russian economist, has died at the age of 82 after falling out of her apartment window in Moscow, Russian state-run media reported on Tuesday. Bondarenko, a leading research fellow at the Institute of Economics of the Russian Academy of Sciences in Moscow, fell out of her apartment window on Monday evening, emergency services told news agency Tass. "She fell out of the window of her apartment, unfortunately, it was not possible to save her, the injuries she received were incompatible with life," the source said.