What did the Aztec economy look like? Was it a free market? Heavily regulated? Totally planned like the Incas to the South?

by RusticBohemian
the_gubna

While you wait for further discussion, one of u/400-Rabbits answers has some sources you might find useful. You might also be interested in the fact that most Andeanists today don't think that the economy of the Inca empire was really "planned" in the proto-socialist way its often described (credit to u/CommodoreCoco for the answer).