Assignment: There is no such a thing as a product B - so substitute your own "real product" for Product B - for example, Product B could be "bananas" and consider what would happen if bananas became more fashionable, the price of a substitute for eating bananas decreases (for example, oranges), etc.
Question: What effect will each of the following have on the demand for product B?
1. Product B becomes more fashionable.
2. The price of substitute product C falls.
3. Income declines and product B is an inferior good.
4. Consumers anticipate the price of B will be lower in the near future.
5. The price of complementary product D falls.
6. Foreign tariff barriers on B are eliminated.