What is the primary reason understanding a company's business is crucial for long-term stock investments?

According to the text, what are the three stages of the 'limited resource' equity research process?

What is the recommended minimum Gross Profit Margin (GPM) for a company to be considered as a potential investment, as per the checklist?

Why is a high level of debt generally considered unfavorable when evaluating a company for investment?

What does a consistently positive cash flow from operations indicate about a company?

What does Return on Equity (ROE) measure?