The supply curve of a perfectly competitive firm in the short run is a. the portion of the firm's marginal cost curve above the minimum point of the average variable cost curve. b. the portion of the firm's marginal cost curve above the minimum point of the average total cost curve. c. the firm's average variable cost curve. d. the portion of the firm's marginal cost curve below the minimum point of the average variable cost curve.

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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answer; experimentation;