Tony Stringer, Managing Director, Global Sovereigns and Brian Coulton, Chief Economist, say threats to the global growth outlook from trade protectionism have become much more significant in recent months. The breakdown of US-China trade negotiations, the recent use of a US tariff threat to pressure Mexico to change migration policies, and the rising chance of a no-deal Brexit all raise the possibility of disruptions to global trade that could have a much bigger impact on the world economy than anything seen over the course of 2018.