Michael Parkin
ISBN #9780133872279
12th Edition
839 Questions
Homework Questions
In this section, the focus is on understanding how firms make production cost decisions in different time frames. In the short run, some inputs remain fixed while others are adjusted, resulting in cost curves that are deeply connected to the firm's production function and the law of diminishing returns. As output increases, average fixed costs decline, but diminishing marginal returns lead to rising marginal and average variable costs at higher levels of production. In the long run, firms have the flexibility to adjust all inputs, thereby choosing the plant size that minimizes average total cost. This analysis is critical in explaining how economies and diseconomies of scale shape the long-run average cost curve, influencing strategic decisions like expansion, technology adoption, and market entry.
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Which of the following news items involves a short-run decision and which involves a long-run decision? Explain. January 31,2008: Starbucks will open 75 more stores abroad than originally predicted, for a total of 975 February 25,2008: For three hours on Tuesday, Starbucks will shut down every single one of its 7,100 stores so that baristas can receive a refresher course. June 2,2008: Starbucks replaces baristas with vending machines. July 18,2008: Starbucks is closing 616 stores by the end of March.
Use the following table to work Problems 2 to 6 The table sets out Sue's Surfboards' total product schedule. Draw the total product curve.
Calculate the average product of labor and draw the average product curve.
Calculate the marginal product of labor and draw the marginal product curve.
a. Over what output range does Sue's Surfboards enjoy the benefits of increased specialization and division of labor? b. Over what output range does the firm experience diminishing marginal product of labor? c. Over what output range does the firm experience an increasing average product of labor but a diminishing marginal product of labor?