Introduction
Pfizer Inc. is one of the largest pharmaceutical companies in the world. It has its headquarter in New York City and its research headquarter in Connecticut. It develops and produces medicines and vaccines for a wide range of medical disciplines i.e.Immunology, oncology, cardiology, diabetology/endocrinology, and neurology.
The Coca-Cola Company is the largest manufacturer, retailer and marketer of soft-drink in the world. It is an American company which produces a carbonated soft drink. It has a presence in over 200 countries around the globe and approximately 1.6 billion serving of Coke and Sprite are consumed per day.
Wal-Mart Stores is an ...