What are the most important differences between perfectly competitive markets and unlike in perfectly competitive markets, in monopolistically competitive markets, a. firms face horizontal demand curves, and there are no barriers to entry b. firms face downward-sloping demand curves, and the products competitors sell are identical. c. firms face downward-sloping demand curves, and the products competitors sell are differentiated d. there are only a few sellers, and the products competitors sell are differentiated e. firms face downward-sloping demand arves, and there are substantial barriers to entry

You own a nonunion company with 93 nonexempt employees. all of these employ- ees pack books into boxes for shipment to customers throughout the united states. because of wide differences in performance, you have decided to try performance appraisal, something never done before. until now, you have given every worker the same size increase. now you want to measure performance and reward the best performers with bigger increases. without any further information, which of the five types of appraisal formats do you think would be most appropriate? justify your answer. do you anticipate any complaints, or other comments, from employees after you implement your new system?