Critically analyse the extent to which there is evidence to support China’s claim of barley dumping / subsidy by Australia?

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Question: China v Australia Barley: In late 2018, China launched two inquiries into alleged dumping of barley by Australian exporters into the Chinese market and into production subsidies from the Australian government. What has motivated China’s inquiries? Critically analyse the extent to which there is evidence to support China’s claim of barley dumping / subsidy by Australia? What defences might Australian producers and/or the Australian government mount?