Answer:
Standardized weights and measures: The Greeks established a system of standardized weights and measures, making trade more efficient and easier to conduct.
Common currency: The Greeks used a shared currency, such as the drachma, which helped to simplify trade transactions and reduce costs.
Laws and treaties: The Greeks established a system of laws and treaties to protect merchants and ensure the safe passage of goods, promoting trade and commerce.
Colonization: The Greeks established colonies throughout their empire, creating a network of trade centers that allowed for easy exchange of goods and resources.
Maritime transportation: The Greeks made use of their strong navy and their expertise in shipbuilding to establish a network of maritime trade routes, making it easier to transport goods and connect their colonies and trade centers.