Market and economy in ancient Greek civilizations were heavily dependent on trade from other city states. Before, people traded various things such as gold and copper. Trade was used to expand their territory and to gather new knowledge from other city states. Ancient Greeks used ships in trading(which doubled as military ships). Today, trade is still very important for the economy. We modified the previous system and improved the ways to trade by the use of bigger ships and planes. Economy also depended on the amount of natural resources the city has. The greater the economy of a city-state the more susceptible it is to exploitation from other cities. It is also a target for invasion. And sadly this still happens today. Not much was showed