Answer the following questions for each company - Amazon, Adobe and Dropbox. The ratios should be analyzed for the past five years and provide a projection for the next three years by analysts who follow the stocks.

1- Introduction - nature of the business. Why is it related to Cloud computing technology?

2- Performance measurements (ROA, Total Asset Turnover, ROCE)

3- Quality of earnings (Quality of earnings ratio = Net cash from operating activities / Net income)

4- Market multiples (P/E, Market/Book, Free cash flow multiple. Unlevered earnings multiple, EBIT multiple, EBITDA multiple, Revenue (sales) multiple, and Total invested capital)

5- What percent of the business is related to Cloud computing technology? Future growth. Advantages and limitations.