In 18th century Europe figures such as Adam Smith, David Ricardo, Friedrich List and Jean Baptiste Colbert developed theories regarding international trade, which either embraced free trade seeing it as a positive sum game or recommended more cautious and strategic approaches to trade seeing it as a potential danger and a rivalry and often as a zero-sum game. What about today?

Donald Trump won in 2016 largely because enough voters in three states, all in the Rustbelt, which had voted for Barack Obama in both 2008 and 2012, switched their electoral votes from Democratic to Republican.