Multi-national company
Where is the base? Where are thy operating? - US base, think about South America, or I'm a Taiwanese, think about the comparison between Apple store and ITunes in Taiwan or China.
Basic currency vs. foreign currency (appreciating / depreciating)
What are their products?
How is they trade? (franchising? Licensing?)
Decision making - employment, cost.... Other the other hand, will people buy the product from a city which sell it in lower price and bring it and sell in somewhere in higher price?
Analyse 2 ~5-years historical data and show the difference among these years. For example production, contract fee...
Economy factor
Product model. Why some particular product model is popular at certain country? Why customer is not buying 5C?