Similarities between Japanese and European feudalism include a social system of various classes with little possibility of mobility from one class to another, the proffering of allegiance in exchange for protection, a warrior class with a code of honor and a peasant class tied to the land. Both societies also had clergy that functioned outside the normal feudal system.
Depends on the time period, but a theme was that money changers stimulated trade and help in the development of growing economies as the trade between different regions occur or happen during that time period.
Mexico's economy is the 15th largest in the world in nominal terms. Hope this helps :)
