Each July, Fortune publishes its Global 500 listing of the world’s largest companies. You can find the current rankings online at www.fortune.com/global500/. Alternatively, you can consult the print edition of Fortune. Browse through the list and choose any company that interests you. Compare its 2017 ranking with the most recent ranking. Has the company’s ranking changed? Consult additional sources (e.g., magazine articles, annual reports, the company’s Web site) to get a better understanding of the factors and forces that contributed to the company’s move up or down in the rankings. Write a brief summary of your findings.