produced in the u.s. in effect tariffs like these could protect the u.s. economy tariffs have existed for almost as long as countries have been trading with each other the u. for example still levies a temper centex and u.s. costs the other way around it's only two point five percent while tariffs like size the world over the average rate of taxation has half over the last twenty years according to the world bank but now that u.s. president donald trump imposed new terrorists many worry other countries will retaliate by imposing terrorists of their own this is what people call a trade war it could impede the free flow of goods that makes up the backbone of the world economy. when your fridge is smarter than you because it realizes you're running out of milk and sends a shopping list to your phone that's what we call artificial intelligence it's quickly conquering many aspects of our lives from smart factories to smart homes and cars and with the rapid growth of the digitalisation artificial intelligence