Many studies looking into the costs and benefits of market timing have been published. How successful does this research suggest you should be at market timing before giving it serious consideration as a trading strategy?

Clinical laboratories test for antibodies against infectious diseases; a positive result for microbe reactive antibodies of the isotype that are identified early in the primary immune response, suggests a recent infection.  This isotype is:

Mature T lymphocytes survive for ___________compared with B lymphocytes , that survive for __________. 

Last year, Big Brain Fund generated returns by making the following investments in 2 asset classes:                                                                        Weight              Return                            Bond Portfolio                  30%                    5%                            Stock Portfolio                 70%                   17% The benchmark portfolio used to judge Big Brain is comprised of the following indices with weights and returns as outlined below:                                                                        Weight               Return                  Bonds (Lehman Index)                20%                    3%                 Stocks (S&P 500 Index)               80%                   14% What was the total excess return of Big Brain Fund’s managed portfolio versus the benchmark?

How does representativeness bias differ from conservatism bias? Provide an example.

A specimen for immunofixation may be:

According to the Treynor-Black model, the weight of a security in the active portfolio depends on the ratio of ________  to ________.

A stock trader you employ currently follows 24 stocks and updates her alpha forecasts every month. She then initiates a certain number of trades each month (less than 24) based on this analysis. You have analyzed her past performance for several years, and find she has an IC = 0.07 and an IR = 0.63. Using the information provided , how many stocks would she need to follow to increase her IR from 0.63 to 0.75? Assume that her IC will remain at 0.07.

A patient is immunized for rubella. What type of immunity does this represent?

Which of the following cell types interact with neutrophils to allow them to express adhesion molecules and cross over to the site of infection?