Efficient Market Hypothesis And Active Management

This problem tests whether you understand the link between market efficiency, security selection, and the role of portfolio managers. In investment banking interviews, questions like this are used to check your grasp of core capital markets theory, especially the idea that if prices already reflect available information, it becomes very difficult for active managers to generate persistent outperformance through stock picking or market timing. It also probes whether you can distinguish between a lucky short term outcome and a repeatable investment edge, which is a key analytical habit in markets discussions. Interviewers ask this because they want candidates who can explain why investors pay for active management, what has to be true for that fee to be justified, and how market structure affects the probability of sustained excess returns.