 Alperovich was a member of the centrist Radical Civic Union until 1999, when Bussi failed to achieve re-election and the new Justicialist Party governor, Julio Miranda , appointed Alperovich to be Minister of Economy.Alperovich thereupon switched to the Justicialist Party.His appointment to the ministerial position was part of an agreement that was designed to maintain a channel of communications between the Justicialist Party and the Alliance government of Fernando de la Rúa.