CHAPTER 3
SOURCES OF COMPARATIVE ADVANTAGE
CHAPTER OVERVIEW
This chapter examines the sources of a nation’s comparative advantage. Attention is then turned to the role of
transportation costs and their effect on trade flows.
The chapter begins with a discussion of the factor endowment theory of trade as developed by Eli Heckscher and
Bertil Ohlin. The discussion considers the process of factor-price equalization and the impact of trade on the
distribution of income. Next examined is empirical evidence regarding the factor endowment theory. The chapter
also considers the role of economies of scale, overlapping demands, intraindustry trade, and product cycles.
The principle of comparative advantage is then examined in a dynamic framework. Special emphasis is given to the
role of industrial policy and environmental regulatory policies.
Finally, the chapter considers the effects of transportation costs on international trade patterns. It is noted that
transportation costs tend to reduce the volume of international trade by increasing the prices of traded goods.
After completing this chapter, students should be able to:
• Discuss the nature and operation of the theory of factor endowments.
BRIEF ANSWERS TO STUDY QUESTIONS
1. Transportation costs affect the location of industry since firms recognize that transportation costs in addition to