I'm no expert on the topic, but I think that Argentina has more of a tendency toward socialist economic policies.
Argentina is especially known for Juan Perón [1], who implemented a lot of socialist policies that were quite popular with the working class but were not generally helpful for Argentina.
Brazil has the exact same unfortunate tendency. Hell there's a literal socialist in the presidency right now and countless others in power. President fancies himself the creator of some kind of latin american soviet union.
