Which one of the following statements is correct? A. A portfolio variance is a weighted average of the variances of the individual securities which
comprise the portfolio.
B. A portfolio variance is dependent upon the portfolio;s asset allocation..
C. A portfolio variance is unaffected by the correlations between the individual securities held in
the portfolio.
D. The portfolio variance must be greater than the lowest variance of any of the securities held in
the portfolio.
E. The portfolio variance must be less than the lowest variance of any of the securities held in the
portfolio.

The federal reserve's organization while all members of the federal reserve board of governors vote at federal open market committee (fomc) meetings, only of the regional bank presidents are members of the fomc. the federal reserve's role as a lender of last resort involves lending to which of the following financially troubled institutions? u.s. banks that cannot borrow elsewhere governments in developing countries during currency crises u.s. state governments when they run short on tax revenues the federal reserve's primary tool for changing the money supply is . in order to decrease the number of dollars in the u.s. economy (the money supply), the federal reserve will government bonds.

5. profit maximization and shutting down in the short run suppose that the market for polos is a competitive market. the following graph shows the daily cost curves of a firm operating in this market. 0 2 4 6 8 10 12 14 16 18 20 50 45 40 35 30 25 20 15 10 5 0 price (dollars per polo) quantity (thousands of polos) mc atc avc for each price in the following table, calculate the firm's optimal quantity of units to produce, and determine the profit or loss if it produces at that quantity, using the data from the previous graph to identify its total variable cost. assume that if the firm is indifferent between producing and shutting down, it will produce. (hint: you can select the purple points [diamond symbols] on the previous graph to see precise information on average variable cost.) price quantity total revenue fixed cost variable cost profit (dollars per polo) (polos) (dollars) (dollars) (dollars) (dollars) 12.50 135,000 27.50 135,000 45.00 135,000 if the firm shuts down, it must incur its fixed costs (fc) in the short run. in this case, the firm's fixed cost is $135,000 per day. in other words, if it shuts down, the firm would suffer losses of $135,000 per day until its fixed costs end (such as the expiration of a building lease). this firm's shutdown price—that is, the price below which it is optimal for the firm to shut down—is per polo.

Bridge building company estimates that it will incur $1,200,000 in overhead costs for the year. additionally, the company estimates 50,000 direct labor hours will be spent building custom walking bridges for the year at a total direct labor cost of $600,000. what is the predetermined overhead rate for bridge building company if direct labor costs are to be used as an allocation base?