The random walk theory of stock prices indicates that
a. if they are willing to do a little research, even beginning investors will be able to pick the stocks that will increase most in price in the future.
b. managed mutual funds will persistently earn a higher rate of return than indexed funds.
c. current stock prices already reflect information about factors influencing future stock prices that can be forecast with any degree of accuracy.
d. stock market investors can expect to earn a steady real rate of return of about 7 percent annually.
C
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An increase in the quantity demanded is shown by
A) a leftward shift of the demand curve. B) a rightward shift of the demand curve. C) a movement down along a demand curve. D) a movement up along a demand curve.
A firm that shuts down in the short run experiences losses equal to
A) zero. B) total variable costs. C) total fixed costs. D) total marginal costs.