Highly risk-averse investor is considering adding one additional stock to a 3-stock portfolio, to form a 4-stock portfolio. the three stocks currently held all have b = 1.0, and they are perfectly positively correlated with the market. potential new stocks a and b both have expected returns of 15%, are in equilibrium, and are equally correlated with the market, with r = 0.75. however, stock a's standard deviation of returns is 12% versus 8% for stock b. which stock should this investor add to his or her portfolio, or does the choice not matter?

Expert computers was started in 2018. the company experienced the following accounting events during its first year of operation: started business when it acquired $40,000 cash from the issue of common stock. purchased merchandise with a list price of $32,000 on account, terms 2/10, n/30. paid off one-half of the accounts payable balance within the discount period. sold merchandise on account for $28,000. credit terms were 1/20, n/30. the merchandise had cost expert computers $16,000. collected cash from the account receivable within the discount period. paid $2,100 cash for operating expenses. paid the balance due on accounts payable. the payment was not made within the discount period. required record the events in a horizontal statements model below. in the cash flows column, use the letters oa to designate operating activity, ia for investing activity, fa for financing activity, or nc for net change in cash. if the account is not affected by the event, leave the cell blank. the first event is recorded as an example. what is the amount of gross margin for the period? what is the net income for the period?