4. Efficient Markets Explain the meaning of efficient markets. Why might we expect markets to be efficient most of the time?

4. Efficient Markets Explain the meaning of efficient markets. Why might we expect markets to be efficient most of the time? In recent years, several securitiesfirms have been guilty of using inside information when purchasing securities, thereby achieving returns well above the norm (even when accounting for risk). Does this suggest that the security markets are not efficient? Explain.