The document discusses various techniques for company analysis and valuation, including regression analysis, trend analysis, and decision tree analysis. Regression analysis examines relationships between company variables, such as revenues and expenses, and external economic factors. Trend analysis predicts future stock movements based on past data, while decision trees illustrate all possible outcomes of decisions. The document also covers challenges with newer techniques, as well as active and passive equity management strategies and tools for analysis like price-earnings ratios and projecting dividends.