Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA = 3% + 0.7RM + eA RB = –2% + 1.2RM + eB σM = 20%; R-squareA = 0.20; R-squareB = 0.12 What is the standard deviation of each stock? (Do not round intermediate calculations. Round your answers to 2 decimal places.)

Which of the following would not generally be a motive for a firm to hold inventories? a. to decouple or separate parts of the production process b. to provide a stock of goods that will provide a selection for customers c. to take advantage of quantity discounts d. to minimize holding costs e. all of the above are functions of inventory.

Sue peters is the controller at vroom, a car dealership. dale miller recently has been hired as the bookkeeper. dale wanted to attend a class in excel spreadsheets, so sue temporarily took over dale's duties, including overseeing a fund used for gas purchases before test drives. sue found a shortage in the fund and confronted dale when he returned to work. dale admitted that he occasionally uses the fund to pay for his own gas. sue estimated the shortage at $450. what should sue do?

Activity-based costing (abc) is not truly a cost collection mechanism as much as it is an inventory valuation method. the main purpose for implementing an activity-based cost system is to try to overcome some of the cost distortions that occur in traditional costing from product differences when there are variations in size and complexity. however, one of the disadvantages of utilizing abc is that the additional information gathering necessary to implement costing with that level of detail might be beyond the reach of some companies with resource or financial constraints. with this in mind, what kinds of industries or companies do you think would benefit most from using activity-based costing and why? in designing or modifying an accounting system to capture appropriate costs for abc, what considerations do you think would need to be made?