Venezuela is not only almost completely dependent on oil exports (extreme price fluctuations) but it's also not agriculturally self sufficient. It's not the only country with those problems, and they're not insurmountable problems, but it requires good economic planning to be able to handle downturns in those conditions, something Venezuela didn't have.
Argentina, on the other hand, has somewhat more varied exports (though soy and corn products are a large portion) and is agriculturally self sufficient. Unlike Venezuela, which had a "export oil, import everything else" mentality, Argentina has a large degree of economic protectionism and so they do have other sectors to help supply domestic demand to some degree.
There's obviously many other factors, but those are the largest ones in my opinion.
Argentina is blessed with natural resources and vast fertile land. It is perhaps the second best piece of geography in the world in terms of natural resources and fertile land after America
The mystery is why it doesn’t grow, not why it doesn’t collapse. Inflation is a beast if people can’t get enough food. But Argentina has never had much of a problem in that respect
There are some who argue Argentina would face massive social unrest if it weren't for it's welfare programs.
"Benítez is one of millions of Argentines who survive largely thanks to soup kitchens and state welfare programs, many of which are funneled through politically powerful social movements linked to the ruling party. Almost a third of Argentine households are estimated to receive some kind of social assistance."
Argentina, on the other hand, has somewhat more varied exports (though soy and corn products are a large portion) and is agriculturally self sufficient. Unlike Venezuela, which had a "export oil, import everything else" mentality, Argentina has a large degree of economic protectionism and so they do have other sectors to help supply domestic demand to some degree.
There's obviously many other factors, but those are the largest ones in my opinion.