An example for the columbian exchange

The Columbian Exchange is an exchange of goods, animals, technology and culture that happened between Europe and the Americas after Christopher Columbus discovered the New World in 1492.  

Europe would bring goods to the Natives, and the Natives would send their goods back to Europe. Some of the items that Europeans sent were sugar, apples, coffee, bananas and spices, while the Natives supplied Europe with tomatoes, potatoes, chocolate, cotton, etc.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .

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