Answer:
The correct answer is option c.
Explanation:
A perfectly competitive market has a large number of buyers and sellers. The firms are price takers and the price is determined by the market forces. Thus the monopoly firms face a horizontal demand curve. This horizontal line represents price, average revenue, and marginal revenue. The equilibrium is obtained where price, (average revenue and marginal revenue) is equal to marginal cost. There is no restriction on entry and exit of firms in the long run. That's why firms face a break-even in the long run.
While in a monopoly market there is a single firm. This firm fixes price higher than marginal cost. The demand curve of the monopoly is a downward sloping showing relatively elastic demand. A monopoly firm can earn profits in both the short run as well as the long run.
Answer:
B) dividing the change in total cost by the change in output
Explanation:
Marginal cost(MC) is the cost incurred as a result of producing additional units of goods and services. It is calculated by dividing a change in total cost by a change in output.
That is,
Marginal cost(MC)= change in total cost(TC)/ change in output
Total cost(TC): This is the addition of fixed and variable cost in production.
Total cost(TC)= fixed cost (FC)+variable cost (VC)
Fixed cost (FC) are cost that doesn't change during the production process such as buildings, machineries and furniture.
Variable cost (VC) are cost that changes or are used up during production process such as raw materials.
Answer:
A Subjective performance evaluation is more feasible when evaluating jobs that cannot easily be evaluated by numbers, in finding problems such as ethical errors that objective evaluation cannot identify and in identifying the rate of achievement of work goals that cannot be recorded in an objective evaluation.
Explanation:
Though Objective evaluation has been the more favored form of evaluation for valid reasons, there are still situations where subjective performance evaluation does a better job in the workplace.
Some jobs for example, the job of an attorney, cannot easily be objectively evaluated. In this situation, it falls on the employer to evaluate the performance of the employee by using measurements like team play, professionalism and client service.
In objective analysis, some ethical approaches are overlooked and the achievement of the set goal is the major criterion for ratings. This affords employees the opportunity to use unethical means to achieve set targets and the objective performance evaluation skips it, leaving them safe and with high ratings. In subjective performance ratings however, the employer having the power to rate employers, could expose these unethical behaviors faster and actions, taken on them.
In the workplace, certain goals are set in overall goals, as a method to achieving the overall set target. In an objective performance rating, an employee could bypass these and still appear to have achieved the overall goal. An objective evaluation will miss this but a subjective evaluation could pick this out and make rating each employee based on these soft goals and overall goal achievable.
Answer:
Between 7.8 and 12 Years
Explanation:
The modified duration of a portfolio is defined as a weighted average in the modified duration of an individual bonds. Therefore it will lie between the extreme values of the modified duration of the bonds in portfolio so that the weights are all positive.
In the context, the modified duration lies between 7.8 years and 12 years as the modified duration would always lie between the lowest modified duration and the highest modified duration of any bonds in a portfolio. Therefore the weights are value that will lie between these two years.
