1. Often it is difficult for students to see how world
trade has improved the living conditions of millions
of the world’s poorest individuals.
2. This slide shows some of the improvement in liter-
acy rates and life expectancy since 1950. These
improvements in the standard of living can be
somewhat attributed to free trade.
3. From The Economist, January 26, 2008, print edi-
tion: Twenty-five years ago two-thirds of the popu-
lation or 600 million people were living in extreme
poverty (on less than $1 a day). Now, the number
living on $1 a day is below 180 million and yet the
world’s population has increased.
4. To start a discussion ask the students: Why has
China been able to improve the living conditions of
so many of its citizens in the last twenty-five years?
(More liberal economic policies have led to greater
economic growth and an increase in the standard
of living for individuals.)
David Ricardo expanded on Adam Smith’s theory of ab-
solute advantage with the theory of comparative advantage.
This theory can be difficult for students to grasp. A country
should produce only what it can produce efficiently, buying
what it cannot produce as efficiently. This theory of inter-
national trade, along with Adam Smith’s Theory of Abso-
lute Advantage, has been a guiding tenet of international
trade since the late 1700s.