question

Which of the following statements is/are correct?

a. in an efficient market, all stocks offer equal expected risk adjusted rates of returns

b. in an efficient market, all stocks offer equal expected rates of return

c.in an efficient market, some of the stocks outperform others

d. two of the answers are correct

-According to behavioral finance, if you are unable to find successful trading schemes, this

a. is not necessary a proof of market efficiency

b. is a proof of market efficiency

c. two of the answers are correct

d. is a proof of market inefficiency

-investors show risk-seeking attitude to the left of the origin point, then their utility function is

a. concave b.convex c. none of the answers are correct d. conventional