1) Each of the following would tend to weaken the Efficient Market Hypothesis EXCEPT:
25 planes for the U.S. Government and the price of Boeing quickly goes up.
B) ACG, Inc. performed well for the past six months, but they just lost a major distribution
contract, but the price of ACG stock continues to go up.
C) Louisville Slugger, Inc., gets a contract to supply bats for Little League play, a contract it
never had before, and stock price remains stable.
D) Disney corporation, a growth company, opens a new theme park, which investors expect will
do tremendously well, and the stock price stays stable, while Urban Electric Company, which has
a set infrastructure, and generates 95% of its earnings from assets it owns, outperforms Disney.
Topic: 7.4 What Determines Stock Prices?
Keywords: efficient markets
Principles: Principle 4: Market Prices Reflect Information
2) Stock prices go up when there is positive information about a company, and go down when
there is negative information about the company.
Topic: 7.4 What Determines Stock Prices?
Keywords: efficient markets
Principles: Principle 4: Market Prices Reflect Information
3) An investor with access to all publicly available information will be able to make higher than
expected profit if the market has semi-strong efficiency.
Topic: 7.4 What Determines Stock Prices?
Keywords: efficient markets
Principles: Principle 4: Market Prices Reflect Information
4) If a market has weak form efficiency, an investor can make higher than expected profits by
studying the past price patterns of a stock.
Topic: 7.4 What Determines Stock Prices?
Keywords: efficient markets
Principles: Principle 4: Market Prices Reflect Information
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