60 Krugman/Obstfeld/Melitz • International Economics: Theory & Policy, Tenth Edition
were often complex and overlapped across industries, in some cases leading to exorbitantly high rates of
protection. Furthermore, protection often led to an inefficiently small scale of production within countries
by creating competition over monopoly profits that would not have existed without protection. By the late
1980s, most countries had shifted away from the strategy, and the chapter includes a case study of Mexico’s
change from import substitution to a more open strategy.
Since 1985, many developing countries have abandoned import substitution and pursued (sometimes
◼ Answers to Textbook Problems
1. The countries that seem to benefit most from international trade include many of the countries of the
Pacific Rim: South Korea, Taiwan, Singapore, Hong Kong, Malaysia, Indonesia, and others. Though
the experience of each country is somewhat different, most of these countries employed some kind
2. The Japanese example gives pause to those who believe that protectionism is always disastrous.
However, Japanese success does not demonstrate that protectionist trade policy was responsible for
3. a. The initial high costs of production would justify infant industry protection if the costs to the
society during the period of protection were less than the future stream of benefits from a mature,
low-cost industry.