52 Gerber • International Economics, Seventh Edition
1. There is a misconception by the general public, students included, that economists and organizations
such as the WTO do not care about the environment. This misconception arises in part because
economists disagree with people who use environmental issues, covertly or otherwise, as trade barriers.
To dispel this incorrect notion, the instructor might ask students to visit the WTO “Environment
Gateway” where they can find a short summary of the trade and environment debate, along with links
to various cases, including the U.S.-shrimp dispute. In addition, there are sections covering the key
provisions and history of environmental concerns
in the GATT and WTO decisions: http://www.wto.org/english/tratop_e/envir_e/envir_e.htm.
2. There are many international agreements on the environment. These are not part of the WTO, and
some have been highly effective in addressing specific environmental problems. The Montreal
Protocol, for example, has been effective at reducing CFC emissions, and the long-run trends are
currently looking more hopeful for the ozone layer. Students could be assigned a specific agreement
◼ Answers to End-of–Chapter Questions
1. What are the three ways for countries to handle different standards abroad? Do standards have to be
the same for countries to be integrated?
Answer: The three ways for countries to handle different standards are harmonization, mutual
recognition, and separate standards. Countries do not have to have the same standards
2. What are the advantages and disadvantages for countries that adopt the same standards?
Answer: Advantages: One possible advantage is the gain in economic efficiency from sharing the
same standard. Shared standards permit manufacturers to produce a single standard rather
than multiple standards, and this may allow firms to capture economies of scale. Also,