That is on the right track.
Economic populism is a very simple case of isolationist policies for the benefit of the common man.
https://www.youtube.com/watch?v=rdfowbT58woA pro-national policy agenda illustrated at one end member of the spectrum was when Chile kicked out copper mining companies in the 1970's and took over the giant copper resources they discovered.
Import tarriffs, barriers to trade and a simple message to the workers that you are not one of them.
Dr Paul M. Johnson from Auburn University explains economic populism as..
"The ideologies of any of a number of political movements that demand the redistribution of political power, economic dominance and/or cultural leadership away from what are seen as corrupt, greedy, over-centralized, urban-based oligarchies in favor of empowering “the common people,” particularly those who live in rural areas."
