Microeconomics (2nd Edition) (Pearson Series in Economics)
Microeconomics (2nd Edition) (Pearson Series in Economics)
2nd Edition
ISBN: 9780134492049
Author: Daron Acemoglu, David Laibson, John List
Publisher: PEARSON
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Chapter 6, Problem 1Q
To determine

Whether the given market is competitive or not.

Expert Solution & Answer
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Explanation of Solution

It is given that a firm has 55 percent share of global market for its product and the remaining 147 firms account for 45 percent share of the global market for their products. The key feature of perfectly competitive market is that no seller or buyer is big enough to influence the price prevailing in the market.

Thus, in this question, the presence of one such big firm that can influence the market price due its large share in the global market. Hence, a large number of sellers in a market will not automatically ensure that it is competitive; it is the share of output that each firm produces that matters the most.

Economics Concept Introduction

Perfectly competitive market is a market where there are many sellers and buyers of a particular good in the market. Hence, due to this large number, each seller and buyer has a very small share in changing the market output; therefore, the market price remains uninfluential by action of an individual seller or buyer.

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