Apple is one of three high-profile companies being required to explain to an Australian government inquiry why its product pricing in Australia is significantly higher than in the United States, reports Kotaku Australia. The issue is not a new one for Australian officials, but legislators are stepping up their investigations into prices being paid by Australians. The action comes after Apple, Microsoft and Adobe had all refused to send representatives to public hearings held by the IT Pricing Inquiry. The government has now issued summonses to all three companies, requiring them to attend and Parliament member Ed Husic warning that legal consequences will follow if they fail to comply.