Agricultural biotechnology is important here, due to its scope for sustained productivity growth and potential impact on agricultural commodity trade. Productivity growth, in turn, leads to increased exports of commodities, as the success stories of Argentina, Brazil, Canada, China, Paraguay and the United States demonstrate. The reason is that the biotech pipeline has been expanding and the biotech regulatory systems and approvals in different countries have become less synchronized. ‘ Zero tolerance" policies for asynchronously approved agricultural innovation thus imply zero trade. One study found that in the case of soybeans, the impact on the EU may be as much as a 200 per cent price increase, in case of zero tolerance. Biotech and other innovations will need to keep supply growth rates in line with demand and prices at sustainable levels.