> The OECD estimated the subsidy equivalent in 2012 (producer support estimate) in all Canadian agriculture represented 18% of the value of the industry with most of this amount going to supply managed sectors which represent only a percentage of Canadian agriculture. Critics say that this results in a "much higher effective subsidy" for supply-managed industries.
> According to Hall Findlay's 2012 study, in the European Union, the effective subsidies were 27%, with the United States at 10%, Australia (6%), New Zealand (1%), Brazil (6%), and China at 9%.
[0]: https://en.wikipedia.org/wiki/Dairy_and_poultry_supply_manag...