Bid rigging on government jobs can cost taxpayers millions of dollars each year. Photo: Dean Lewins/AAP PHOTOS

Companies that take part in collusive cartels could soon be exposed by artificial intelligence.

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The consumer watchdog has set its sights on suppliers who work together to raise prices on government contracts in a practice known as "bid rigging".

A form of cartel conduct, bid rigging occurs when businesses discuss and agree among themselves who should win a tender and at what price, instead of competing against each other.

Though it is illegal, bid rigging can be difficult

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