2. Using Samsung Electronics as an example (using recent financial data), explain the EVA estimation method in detail. (5 points) 13. Using Samsung Electronics and POSCO as examples (using recent financial data), analyze the company's cost structure in terms of industry analysis. (5 points 4. Among the stocks listed on the KOSPI, present the stocks that have recently exhibited the reverse head and shoulder type among the conversion patterns, and provide the rationale. 5.2021.1 2021.11 Find a case where a semi-strong EMH is established among KOSPI listed stocks, and explain the rationale in detail. (5 points) 6.2021.1 ~ 2021.11 Find at least two stocks that showed a January effect in the KOSPI during the month, and explain the reasons for judging the January effect in detail. (5 points)