do u know anything about australia's recent economic performance? If not I suggest you look up the ABS website to find some statistics (btw you should know these). The main factors could be from a variety of combined features of our current economy. For instance some POSITIVE factors include: Record low unemployment rates, exceeding demand for mineral exports, moderately low and sustainable inflation rates and current budget surplus. You will need to know these factors and how they effect Australia's economic performance before doing anything Im affraid. Textbooks such as Riley's or Dixon's will assist here.