Explanation : Based on the convention used in the curriculum, the term „with respect to
efficient markets‟ implies that the markets are efficient. If the market is
efficient, the most likely reason for the stock price to „react gradually‟ is
that the market is waiting for additional information.
Explanation : This observation contradicts semi-strong and strong form market
efficiency. Semi-strong-form efficient markets reflect all publically
available information which includes financial statement data (including
book value of a company) and financial market data (market price of a
security). A strong-form efficient market is, by definition, also semi-strong
and weak form efficient. This observation is not a contradiction to weakform market efficiency as financial statement data is not reflected in a
security‟s price in such markets.
Explanation : In semi-strong efficient market, prices adjust quickly and accurately to
new information and investors cannot earn abnormal profits on public
announcements. Thus, the market is not semi-strong efficient. A market
that is not semi-strong efficient is also not strong form efficient. However,
the market could still be weak form efficient because past prices are not
being used to make abnormal profits.
Explanation : In an efficient market, prices should be expected to react only to the
“unexpected” or “surprise” element of information releases. Investors
process the unexpected information and revise expectations accordingly.