This is called bartering.
a product, service, or idea
a product, service, or idea
a product, service, or idea
exchanged (for)
the ratio at which a unit of the currency of one country can be exchanged for that of Another Country. (www.dictionary.com)
The price of any product is determined by the laws of demand and supply.
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Generically a triangular trade ships Product A (from Country 1) to Country 2 where it is traded for Product B which is shipped to Country 3 and exchanged for Product C (which is shipped back to Country 1).
Foreign exchange market
True. The waste product eliminated by the lungs is carbon dioxide, which is a byproduct of cellular respiration. It is exchanged for oxygen during the process of breathing.
A pack-in is a product which comes bundled with another product.
product