An oligopolist differs from a perfect competitor in that A. there is cutthroat competition in perfect competition but little competition in oligopoly because firms have significant market power.

B. firms in an oligopoly do not produce homogeneous products while firms in perfect competition do.

C. the market demand curve for a perfectly competitive industry is perfectly elastic but it is downward-sloping in an oligopolistic industry.

D. there are no entry barriers in perfect competition but there are entry barriers in oligopoly.

For each example identify the most appropriate ctso

True or false: a fitted model with more predictors will necessarily have a lower training set error than a model with fewer predictors.

Adamson company manufactures four lines of garden tools. as a result of an activity analysis, the accounting department has identified eight activity cost pools. each of the product lines is produced in large batches, with the whole plant devoted to one product at a time. classify each of the following activities or costs as either unit-level, batch-level, product-level, or facility-level. activities (a) machining parts. (b) product design. (c) plant maintenance. (d) machine setup. (e) assembling parts. (f) purchasing raw materials. (g) property taxes. (h) painting.