Explain the influence on demand (if any) of the given changes

1. A new, less expensive substitute good is introduced into the market.
2. The price of a complementary good falls.

The price of the

1. The government opens ups it borders to completely free immigration.
2. The good in question becomes more popular with consumers.
3. The cost of producing the good rises.
4. There is an expectation of higher future prices. What would happen to present demand?
5. It is a normal good and buyers' incomes increase.
6. It is an inferior good and buyers' incomes rise.
7. The price of the good rises.
8. A change in technology makes production more efficient
9. The price of an independent good rises.