Clever tests to discriminate between alternative explanations. LaPorta, Lakonishok, Shleifer, and Vishny ("Good News for Value Stocks," Journal of Finance, June 1997) study the returns on stocks on the few days surrounding their quarterly earnings announcements (relative to various expected return benchmarks). They find that on average, high-B/M stocks earn 0.9% around an earnings announcement. In contrast, low-B/M stocks earn an average of -0.1% around an earnings announcement. The difference is statistically significant.

Discuss whether the return pattern found by LaPorta et al. (1997) around earnings announcements is more consistent with the irrational expectations (behavioral) view, or the risk factor (efficient markets) view of the book-to-market effect, and explain your logic.

Afreelance​ singer-songwriter is planning the restoration of a recently purchased civil​ war-era farmhouse. while he professes an enjoyment​ of, and talent in the construction​ trades, the theory of comparative advantage implies that a. the value of what he imports​ (in this​ case, professional contractor​ services) must equal the value of what he exports​ (songs). b. he should concentrate on the restoration work since his​ out-of-pocket costs will be much lower than if he hires professionals. c. ​self-sufficiency is​ advantageous, hence he should split his time between music and construction. d. the income lost while away from music will likely exceed the savings realized by doing the work​ himself, thus, he should hire professionals to do the restoration work. e. he ought to do as much of the work himself as possible since imports​ (in this​ case, professional contractor​ services) should always be restricted to those things that cannot be done internall

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The – effect means tommy's – will shift because he has less purchasing power. as a result, he may choose the regular-size steak instead of the larger "hunter's portion" he prefers. the – effect means tommy may spend some of the money he saved by ordering the smaller steak to order a bigger salad.