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ECONOMICS Class Readings » Unit Four » Understanding Absolute and Comparative Advantage
Understanding Absolute and Comparative Advantage Understanding Absolute and Comparative Advantage

Understanding Absolute and Comparative Advantage

 

Let’s start with a riddle….

 

A rabbi and a priest are in a field of strawberries filled with tall apple trees. In order to reach heaven, they must thoroughly harvest their crops. The priest is 7 feet tall; the rabbi is a on 5 feet tall.   Who should do what?

 

Duh

 

The tall guy picks the apples; the short guy harvests the strawberries. Easy call. That’s comparative advantage – the rabbi is vertically-challenged so he has a comparative advantage picking things low whereas the priest is high so he may pick the apples.

 

The notion follows that countries have similar advantages: Kiwi grows easily in New Zealand, and not so easily in Saudi Arabia. Now Saudi gardeners could probably build shade, import soil, and bring in water to try and replicate the natural conditions of New Zealand but… why? Why not just let the New Zealanders grow their kiwis and ship them on boats powered by Saudi oil?

Before we get too carried away, let's stop for the four key terms you're going to need to master to fully understand international trade:

 

·         Absolute advantage refers to a country’s ability to produce a certain good more efficiently than another country.

 

·         Specialization refers to a country’s decision to specialize in the production of a certain good or list of goods because of the advantages it possesses in their production.

 

·         Opportunity cost refers to what you sacrifice in making an economic choice. In this instance, it refers to the value of the goods you sacrifice in deciding to produce one good instead of another.

 

·         Comparative advantage refers to a country’s ability to produce a particular good with a lower opportunity cost than another country.

 

Let’s think about these in terms of individuals instead of nations and choices we all understand... like trying to decide whether to become a fry cook or a heart surgeon. 

 

Let’s say you're a wonderful fry cook and a talented heart surgeon. Your neighbor is a pretty good fry cook and (since he is near-sighted and has a severe hand tremor) an absolute butcher as a surgeon.

 

You have an absolute advantage over your neighbor as a fry cook. He just can’t hang with you around a pan of sizzling lard. And you also possess an absolute advantage over him as a surgeon—your patients actually survive their surgeries occasionally. 

 

Which career should you pursue? To become a fry cook, you must sacrifice your far more lucrative work as a heart surgeon; your opportunity cost is very high. On the other hand, your moderately skilled fry-cooking neighbor has a relatively low opportunity cost—to pursue a career as a fry cook he only has to sacrifice his malpractice-suit-waiting-to-happen career as a surgeon. Therefore your neighbor has a comparative advantage in fry cooking... even though you're objectively a better fry cook than he is.

 

The real world is far more complicated than this. But David Ricardo, an early nineteenth-century British economist, argued that these simple principles can be used to explain international trade. Countries, not just individuals, possess certain advantages. Climate, geography, the skills and size of their labor force, the ability to grow or not grow kiwi fruit—these all contribute to make a country good at producing certain things. And countries, like individuals, also have to make certain sacrifices in deciding which of the goods that they can produce they should produce—to produce corn instead of wheat, cars instead of boats, computer chips instead of refrigerators. Being rational operators, they eventually produce those products in which they have a comparative advantage, those goods having a comparatively low opportunity cost.

 

As a result, we have international marketplace filled with all sorts of good stuff. Countries identify their comparative advantages and sell the resulting goods in the international market. Brazil sells coffee, Estonia builds ships, and Palau exports coconuts.  These are the fruits of comparative advantage.

 

 

Why It Matters Today

 

Do you know what you want to be when you grow up?  Choosing a career is one of the most important choices you'll make in your entire life.  If don't want to make the wrong choice, you'd better think about comparative advantage—both your own as an individual and your country's in the international market. 

 

If you're living in the United States, it really doesn't matter if you're the world's most talented stitcher of men's underpants.  Other nations where labor is much cheaper (hey there, Indonesia!) have such a strong comparative advantage over the high-wage United States in the underwear assembly industry that you'll never be able to find and keep a job in that field. 



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