8. The efficient markets hypothesis True or False: The efficient markets hypothesis holds only if all investors are rational. False True: Almost all financial theory and decision models assume that the financial markets are efficient. The informational efficiency of financial markets determines the ability of investors to "beat" the market and earn excess (or abnormal) returns on their investments. If the markets are efficient, they Will react rapidly as new relevant information becomes available. Financial theorists have identified three levels of informational efficiency that reflect What information is incorporated in stock prices. Identify the form of capital market efficiency under the efficient market hypothesis described in the following statement: Current market prices reflect all information contained in past price movements. This statement is consistent with: Strong form efficiency Semistrong form efficiency Weak form efficiency Consider that there is a weak form of efficiency in the markets. A pharmaceutical company announces that it has received Federal Drug Administration approval for a new aliergy drug that completely prevents hay fever. The consensus analyst forecast for the company's earnings per share (EPS) is $4.50, but insiters know that, with this new drug, earnings will increase and drive the EPS to $5.00. What will happen when the company releases its next earnings report? The stock price will not change, because the market already incorporated that information in the stock price when the announcement was made. The ftock price will increase and settie at a new equibibrium level. There wil be some volatility in the stock price when the earnings report is released, but it is difficult to determine the impact on the stock price. However, the prices wil eventually adjust to the news announcement