Australia is a sovereign nation and does not 'belong' to anyone. The economic system in Australia is their own affair. Australia chooses to use the capitalistic economy model, as is their right. Being settled by the British, it was modelled on the British system.
The British Empire - yes
British Airways Ltd. ended in 1939.
British Overseas Airways Corporation- a forerunner of British Airways.
none.
British Airways is the official name.
British airways Plc
British Airways BA0081 --> Accra British Airways BA0079 --> London Heathrow
One can find and book flights to India by British Airways at the official British Airways website. British Airways advertises different flight packages to India.
British Airways, British Midland, Easyjet.
British Airways 78
Yes, British Airways flies to Dubai.