sentence1: Abel Aganbegyan ( born 1972 , Novosibirsk ) is a Russian economist , the president of Micex , son of the famous Soviet economist Ruben Aganbegyan .
sentence2: Ruben Aganbegyan ( born in 1972 , Novosibirsk ) is a Russian economist , president of Micex , son of the famous Soviet economist Abel Aganbegyan .