downturn that's according to a united nations report released monday the study by the un conference on trade and development agency found that a tariff hike in march would rattle already unstable global commodities and financial markets to trump has threatened a tariff hike during negotiations between the two nations the study also says more companies would move their operations out of china. and let's take a closer look at this with our financial correspondent in new york against courts yes what would further tariffs mean to some of for example the biggest american companies. well i mean that really is remains to be see you know what the report of the united nations claims is that the u.s. in general would not really profit that much if they are going to increase the tariffs and the big question really is will the tariff speed increase or not i mean the clock is ticking we are approaching the deadline of march first of pretty soon some of the bigger u.s. companies could try to get some of the materials for instance from other nations but you can't just do that over night so overall we probably might see a negativ