Katy Robinson, a self-employed young Australian, smiles at Coogee beach in Sydney, April 1, 2011. Australia boasts one of the world's lowest jobless rates and is the self-proclaimed envy of the developed world, but it has a dirty little secret:one in six of its youth is unemployed. To match Analysis AUSTRALIA-ECONOMY/YOUTH REUTERS/Daniel Munoz (AUSTRALIA - Tags: BUSINESS EMPLOYMENT)