bartering of goods for each other
Explanation:
After the decline of the Indus valley civilization, Vedic age started in the Indian history. Generally dated, between 1500-600 B.C. as most of the modern scholars agree on this date. References point to the use of barter system and metallic currency in that age. In the Vedic Age, the cow stood as a higher unit of barter and cowrie-shells were used for lower purchase
A- It established an agreement between Soviet U. ...
-people wanted to move because they wanted better lives. they faced dangerous journeys .
-they moved west because land was cheap or free and they thought they would do better business in the west .
-people who weren't making business or wasn't making any money, found the opportunities to move west to start everything all over again