He was an Italian diplomat, politician, and philosopher. He is most known because of his book called "The Prince". A book that analyzed different political systems. To him is granted the negative connotation that today has the words "politics" and "politician" along with the term Machiavelli.
In his book, he advises how to rule successfully but sometimes doing bad things on purpose.
With respect to trade, caravan routes were linked to overseas trading networks, forming a great web for the transportation of good that knit together the "world economy" of the Islamic Empire.