Event 1: Apple invented iphone10s, what would happened to market for Samsung Galaxy S6
1. Smart phones from both Apple and Samsung are substitutes to each other. When Apple invented inphone10s, it affects to Demand for Samsung Galaxy S6.
2. There is a change in non-price factor: preference, so demand curve for Samsung Galaxy S6 shifts to the left.
3. New equilibrium price and quantity in market for Samsung Galaxy S6.