Your broker commented that well-managed firms are better investments than poorly managed firms. As evidence, your broker cited a recent studying examining 100 small manufacturing firms that eight years earlier had been listed in an industry magazine as the best managed small manufacturers in the country. In the ensuing eight years, the 100 firms listed have not earned more than the normal market returns. Your broker continued to say that if the firm were well managed, they should have produced better-than-average-returns. If the market is efficient, do you agree with your broker?