When Jesus came as a stranger, the blessed ones: invited him in, nourished him, took care of him, and visited him in jail.
Come, you who are Blessed by my Father; take your inheritance, the kingdom prepared for you since the creation of the world. For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, I was sick and you looked after me, I was in prison and you came to visit me....I tell you the truth, whatever you did for the least of these brothers of mine, you did for me.
Matthew 25: 34-40
Possibly more trades could take place around the world
Perrow (1972) stated that in order for bureaucracy to be efficient, it must be "<u>stable</u>".
Perrow (1972) has gone significantly further, proposing that "the transgressions for the most part credited to organization are either not sins at all or are results of the inability to bureaucratize adequately". Then again, Perrow additionally recognizes that the "perfect" type of an organization is never figured it out. One reason for this is individuals from the association "track a wide range of mud from whatever remains of their lives with them into the association, and they have a wide range of interests that are free of the association".
I would say it's mostly climate, as it determines two things: 1) what can grow/live in a given place and 2) how long can the products be kept
Additionally, it's the closeness to such things as water sources where you can fish and trade routes: a lot of European cuisines include cofee products, even if cofee is not grown in Europe!