how did economic nationalism affect trade in the world?
Best Answer: Economic nationalism is the idea that the government of a country should favour the producers of that country over producers in other countries. The idea is that this will keep profits, and jobs, and businesses, in the country. It promotes the economic self-sufficiency, or autarky, of that country. Economic nationalism makes its people poorer, and was the main economic cause of the first and second world wars. The reason is because, in order to achieve autarky, the State must restrict trade with other countries. It does this by putting taxes - tariffs - on incoming goods.