Grain Trade in the Mediterranean
    The greatest factor in the fluctuation of grain prices in the Middle Ages was the distance between the fields where the grain was grown and the ports from which it was shipped...

The Profits of the Pepper Trade
The profits of the pepper trade were enormous, and there were several attempts to corner the market...

Mercantilism, Food, and Grain in Turkish Cities
A vast network of trading routes converged on Mediterranean cities, themselves subject to the physical limitations of their geography and matrix of communications...