An analyst does research about market efficiency. Which of the followings is most likely used to test the semi-strong form efficient market hypothesis（）
A: Event studies.
B: Serial correlation in security return.
C: Trading on nonpublic information.
A: Event studies.
B: Serial correlation in security return.
C: Trading on nonpublic information.
举一反三
- Which of the following tests are NOT used to examine the weak form of the efficient market hypothesis Those that examine:（） A: whether security returns are independent over time. B: a security’s return relative to the market return. C: whether excess returns can be obtained from using mechanical trading rules.
- Which category of tests assumes that, in an efficient market, securities lie on the security market line A: Event studies. B: Cross-sectional tests. C: Time-series tests.
- An analyst does research about market efficiency. Which of the following statements least likely explains why a market mispricing may persist（） A: Arbitrage is encouraged to produce riskless profits. B: A price discrepancy is insufficient large to leave the investor with a profit. C: Short selling is limited or restricted.
- An analyst does research about hypothesis testing. Which of the following test statistics is most appropriate test statistics for two means based on samples that we believe are dependent A: T-test. B: F-test. C: Chi-square test.
- The beta of a security is calculated by A: dividing the covariance of the security with the market by the variance of the market. B: dividing the correlation of the security with the market by the variance of the market. C: dividing the variance of the market by the covariance of the security with the market. D: dividing the variance of the market by the correlation of the security with the market.