==Activities==
===Fairtrade coffee complaint===
In April 2007 Davidson and [[Tim Wilson]], a research fellow at the [[Institute of Public Affairs]], lodged a complaint to the [[Australian Competition and Consumer Commission]] that [[Oxfam]]'s support of fair trade coffee amounts to a breach of the Trade Practices Act provisions against misleading and deceptive conduct. <ref>Caroline Overington, "[http://www.theaustralian.news.com.au/story/0,20867,21634518-601,00.html Oxfam coffee 'harms' poor farmers]", ''The Australian'', April 28, 2007.</ref> The ACCC rejectsed the claims by Wilson and Davidson.<ref>Mario Xuereb, [http://www.theage.com.au/news/business/not-free-but-fair-oxfam-cleared-of-coffee-chicanery/2007/06/27/1182623991540.html "Not free, but fair: Oxfam cleared of coffee chicanery"], ''The Age'',June 28, 2007.</ref>
===On global warming===
In May 2007 Davidson and Dr [[Alex Robson]], a lecturer in economics at the Australian National University, challenged the view that the assessment of the Intergovernmental Panel on Climate Change was sufficient to decide there was a need to make substantial cuts in greenhouse gas emissions. Claiming that there was a "lack of knowledge and understanding of climate change, it is not unreasonable for policy-makers to adopt a cautious approach to policy change. It is also not unreasonable for people to discount the hysterical commentary around climate change," they wrote. <ref>Sinclair Davidson and Alex Robson, "[http://www.geelongadvertiser.com.au/article/2007/05/01/3348_opinion.html Hypothetical hysterics at 90 per cent]", ''Geelong Advertiser'', May 1, 2007.</ref>
===Consulting for the Minerals Council of Australia===
In July 2011 Davidson and [[Ashton de Silva]] co-authored [[Costing of The Greens’ Economic Policies: Mining (Report)|Costing of The Greens’ Economic Policies: Mining]], a report for the [[Minerals Council of Australia]], the peak mining industry lobby group, criticising the Australian Greens policy of a phase out of the coal industry in Australia.<ref name="Greens2">[[Sinclair Davidson]] and Ashton de Silva, [http://www.mineralscouncil.com.au/file_upload/files/reports/Costing_of_The_Greens_mining_policies.pdf ''Costing of The Greens’ Economic Policies: Mining''], Minerals Council of Australia, July 2011.</ref>