What is competition?
While 'competition' is a concept that most of us will have a common-sense understanding of, it is not actually defined in Australian legislation. A definition of competition is not as important, however, as your understanding of what constitutes anti-competitive conduct and is, therefore illegal.
Australia's competition laws regulate the way in which businesses deal with their customers, suppliers and competitors. These laws apply across Australia and are found in the CCA. All businesses are bound by the laws. Any commercial actions which take place 'in trade or commerce' (that is, almost any typical business activity) are likely to be covered by the CCA.