I need help with this assignment, please. I want to write about Walmart Corporation. Can you please direct me to good literature and resources?

I need to research and write 4-page paper about Walmart Corporation which recently made a strategic cost decision.

1) Describe Walmart corporation.

2) What type of products do they sell, where is their market, and how competitive is their industry? 3) 3) Explain the cost decision that was made, discuss public reaction, and any apparent fall-out or positive impacts resulting from the cost decision.

An excellent resource is looking at the SEC.gov online EDGAR database, the company's current financial statements, and Management Discussion and Analysis reports.