Principles of Economics, 7th Edition

Published by South-Western College
ISBN 10: 128516587X
ISBN 13: 978-1-28516-587-5

Chapter 1 - Part I - Ten Principles of Economics - Questions for Review: 7


The two main causes of market failure are externalities and abuses of market power.

Work Step by Step

Market failure is the notion that the price mechanism (supply and demand) on its own does not always provide desirable outcomes for society. Externalities refers to the wider social costs and benefits of production that are not reflected in the price and quantity set by supply and demand. A good has negative externalities if there are unwanted side effects of production, such as pollution from cars. A good has positive externalities if there are widespread benefits. For example, education benefits not only the individual but society as a whole, as a more skilled workforce leads to economic growth. Market failure means that goods with negative externalities are overproduced, while goods with positive externalities are underproduced. The abuse of market power occurs in the case of monopolies, where a firm can set an undesirable price for its good as there is no competition forcing the price down.
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