1. Lowers aggregate demand (less consumption, investment by firms), slowing down the economy. ---> effects of lower economic activity. less growth, less employment, less inflation...
2. Encourages foreign investment into Australia through the difference in interest rates making Australia a more attractive place to invest.
3. 1 and 2 decrease supply of AUD and increase demand for AUD resulting in an appreciation --->effects on ToT, BoP, international competitiveness.
...there must be more but i can't think of em....