Georgi Dimitrov, Bulgarian communist, was a theorist of capitalism who expanded Lenin's ideas by arguing that fascism was the dictatorship of the most reactionary elements of financial capitalism.
"Fascism is an open terrorist dictatorship of the most reactionary, the most chauvinistic, the most imperialistic elements of the financial capital.. Fascism is neither the government beyond classes nor the government of the petty bourgeois or the lumpen-proletariat over the financial capital.