Eduardo Duhalde, Argentina’s fifth president in two weeks, was greeted by thousands of jeering, pot-banging demonstrators who swarmed the streets of the capital early this morning.

Eduardo Duhalde, an old-style populist from the Peronist party, was sworn in as Argentina’s fifth president in two weeks today - and immediately lashed out at the unbridled free market policies he blames for the country’s economic chaos.