Which of the following statements concerning market efficiency is least accurate?
A) |
If weak-form market efficiency holds, technical analysis cannot be used to earn abnormal returns over the long-run. | |
B) |
Tests of the semi-strong form of the EMH require that security returns be risk-adjusted using a market model. | |
C) |
Market efficiency assumes that individual market participants correctly estimate asset prices. | |
Market efficiency does not assume that individual market participants correctly estimate asset prices, but does assume that their estimates are unbiased. That is, some agents will over-estimate and some will under-estimate, but they will be correct, on average. |