What kind of market runs most efficiently when only one firm supplies all the goods or services?

Differentiate between the trait, behavioral, and results-based performance appraisal systems, providing an example where each would be most applicable.

Direct materials (4.2 x $15) $ 63direct labor ($12 x 17.5) $210manufacturing overhead ($2.40 x 17.5) $42total job cost $ 315dougan, inc. allocates overhead based on a predetermined overhead rate of $2.40 per direct labor hour. employees are paid $12.00 per hour. job 24 requires 4.2 pounds of direct materials at a cost of $15.00 per pound. employees worked a total of 17.5 hours to complete the job. actual manufacturing overhead costs totaled $80,000 for the year for the company. how much is the cost of job 24?

You are the manager of a large crude-oil refinery. as part of the refining process, a certain heat exchanger (operated at high temperatures and with abrasive material flowing through it) must be replaced every year. the replacement and downtime cost in the first year is $165 comma 000. this cost is expected to increase due to inflation at a rate of 7% per year for six years (i.e. until the eoy 7), at which time this particular heat exchanger will no longer be needed. if the company's cost of capital is 15% per year, how much could you afford to spend for a higher quality heat exchanger so that these annual replacement and downtime costs could be eliminated?