the realized return on a stock portfolio is the weighted average of the expected returns on the stocks in the portfolio. true or false?

Which type of data is generally stored in different file formats, such as text files, spreadsheets, and so on?

Which of the following is not an example of one of the four mail advantages of prices on a free market economy

As the inventor of hypertension medication, onesure pharmaceuticals (osp) inc. was able to reap the benefits of economies of scale due to a large consumer demand for the drug. even when competitors later developed similar drugs after the expiry of osp's patents, regular users did not want to switch because they were concerned about possible side effects. which of the following benefits does this scenario best illustrate? a. first-mover advantages b. social benefits c. network externalities d. fringe benefits